ATI Safe Dosage and Calculations Exam Solved & Rated A+ 2022.

ATI Safe Dosage and Calculations Exam Solved & Rated A+ 2022. a nurse is assisting w/ the orientation of a newly licensed nurse. the nurse should explain that it is important to have a second nurse review the dosage of ...

ATI Safe Dosage and Calculations Exam Solved & Rated A+ 2022. a nurse is assisting w/ the orientation of a newly licensed nurse. the nurse should explain that it is important to have a second nurse review the dosage of high-alert medications, such as heparin & insulin, for what reason? a nurse is caring for a client who is to receive omeprazole (Prilosec) 40 mg PO daily. the client tells the nurse that the pill is too hard to swallow. what action should the nurse take? a nurse is preparing to administer insulin subcutaneously to a client. the nurse should document the administration of the medication immediately after what action? a nurse is caring for a client who has a prescription for meperidine (Demerol) 50 mg PO every 3 hr PRN for moderate pain, & meperidine 75 mg PO every 3 hr PRN for severe pain. at 1200, the client reports back pain rated as 8 on a pain scale of 0-10. the client received 75 mg PO at 0700 & 50 mg PO at 1000. what action should the nurse take? (it's been 5 hrs since the previous dose so this is the appropriate action) a nurse is in a client's room preparing to administer docusate sodium (Colace) PO & acetaminophen (Tylenol) PO. the client refuses to take the medications because of nausea. what action should the nurse take? a nurse is reviewing a client's prescriptions. the nurse should contact the provider to clarify what prescription? a nurse is preparing to administer potassium chloride 40 mEq PO daily. available is potassium chloride 20 mEq effervescent tablets. in addition to checking the correct dosage before administering the medication, the nurse should check what? a nurse is preparing to administer a medication subcutaneously. what should the nurse use? a nurse working in a medical surgical unit is preparing to administer medications to a client. the nurse plans to use 2 forms of ID to verify that she the right client. what actions should the nurse take to ID the client? a nurse is caring for a client who received lisinopril (Zestril) 30 min ago & is now reporting dizziness & headaches. what actions should the nurse take first? a nurse is preparing to administer a liquid medication to a toddler. what action should the nurse take? a nurse is planning atraumatic care for a preschooler who has a prescription for an intramuscular medication. a parent is with the child. what actions should the nurse include in the plan of care? a nurse is transcribing medication prescriptions for a group of clients. what is an example of the appropriate way for the nurse to record medications that require the use of a decimal point? a nurse is transcribing a provider's prescription for a client. the prescription reads morphine 2mg IV bolus at 1400. the nurse recognizes this as which of the following types of medication orders? a nurse is reviewing a client's prescriptions. the nurse should contact the provider to clarify what prescription? (prescription contains name of med, dosage, route, circumstance of administration, but no frequency) a nurse is caring for a client who states that his provider told him he is at risk for anaphylaxis following administration of amoxicillin (Amoxil) and that he does not understand what this means. what is an appropriate response? a nurse is providing teaching regarding medication administration to a group of newly licensed nurses. what is a legal responsibility of a nurse? a nurse manager is reviewing a client's medical record & discovers that the client received a double dose of a prescribed medication. what action should the nurse manager take first? a nurse on a med surg unit is caring for a client who has type 2 diabetes mellitus & has a prescription for metformin (Glucophage) 500 mg PO every 12 hr. the client is scheduled for a chest X-ray in the morning. what is an appropriate action by the nurse? a nurse is preparing to administer medication to a client who has a prescription for doxycycline (Vibramycin) 100 mg PO daily at 0800. what times are appropriate for the nurse to administer the medication? a nurse is caring for an unconcscious patient. what statement by the nurse indicates an understanding of providing good oral hygiene? when planning morning hygiene care for a postoperative patient, what action should the nurse include? a nurse is caring for an adult pt who is NPO. pt is refusing oral care. what's an appropriate response? a nurse is caring for a pt who is on long-term bedrest & requires frequent linen changes due to excessive diaphoresis. what is a priority rationale for frequent linen changes? - a nurse observes an assistive personnel (AP) make a client's bed while the client is out of the room. what action by the AP is appropriate? - while performing a complete bed bath for a pt, the nurse should a nurse is preparing to assist a pt w/ a hot tub bath. what steps should the nurse take? - a nurse is assisting a pt w/ personal hygiene care. what action by the nurse will reduce the risk of infection? what action should a nurse take when removing a pt's indwelling urinary catheter? - a nurse is planning on obtaining a urinary specimen from a pt's closed urinary system. identify the sequence of steps the nurse should take. a nurse is assessing a pt's indwelling urinary catheter drainage at the end of the shift & notes the output is considerably less than the fluid intake. what should the nurse take first after checking for kinks? a nurse is likely to receive an order for urinary catheterization of a newly admitted pt who - when providing perineal care for a female pt who has an indwelling urinary catheter, what areas should the nurse cleanse last? a nurse is preparing to insert an indwelling urinary catheter for a female pt. when beginning the insertion procedure, the nurse should instruct the pt to a nurse is applying a condom catheter for an older adult pt who is uncircumcised. what is an appropriate step in the procedure? a nurse who is preparing to insert a straight urinary catheter for a male pt should - a nurse inserting a nasogastric tube asks the pt to flex her head toward her chest after the tube passes through the nasopharynx. this action facilitates proper insertion of the tube by a pt w/ a gastric ileus postoperatively requires nutritional support for approximately 2 weeks. what type of feeding tubes is appropriate for the pt? an older adult pt in a long-term care facility is receiving intermittent enteral feedings in his room. his affect is flat, & the nurse suspects that he's feeling isolated. what intervention is appropriate for this pt? - nasogastric tube feedings are an appropriate choice for a pt who a nurse is providing teaching to a pt who is receiving intermittent nasogastric feedings. what should the nurse instruct the pt to report immediately? to prevent a common complicate of continuous enteral tube feedings, a nurse should - what formula is appropriate to administer to a pt who has a dysfunctional gastrointestinal tract? the most reliable method for verifying inital placement of a small-bore feeding tube is by to prevent aspiration during the administration of an enteral tube feeding, a nurse should to determine how much of the length of a nasoenteric tube to insert, a nurse should measure the distance from the tip of the pt's nose to the earlobe and from the earlobe to the to assess a pt for adequate swallowing, the nurse should do what? a nurse is caring for a pt who has impaired swallowing due to a cerebrovascular accident. what interventions should the nurse use to assist the pt w/ feeding? what are some appropriate choices for a pt prescribed a full liquid diet? a nurse should recognize that what is correct regarding albumin level as a diagnostic marker for nutritional status? a nurse is performing a nutritional assessment. when obtaining & interpreting anthropometric values, the nurse should recognize what? a pt has finished a 16-oz container of orange juice. the I&O sheet documents fluid in milliliters. what should the nurse document as intake? when teaching the parents of a toddler about feeding & eating, the nurse should include what safety measures? a nurse is caring for a pt who has sustained a head injury & whose level of consciousness fluctuates. the provider prescribes a full iquid diet progressing to a pureed diet as tolerated. before initiating feedings, it's essential that this pt undergo what? - what dietary modifications should an adolescent engaging in sports implement? what interventions should a nurse use at mealtimes for a pt who has visual deficits? - what is a primary purpose for asking a pt to keep a 3-7 day food diary? what strategies for enhancing the intake of healthful foods is appropriate for an adolescent? a nurse is performing a nasogastric intubation. what actions should the nurse take immediately after inserting the tube to the predetermined length? a nurse is caring for a pt who has a nasogastric tube connected to suction. what should indicate to the nurse that the tube has become occluded? during report, a nurse is inform that a pt has a nasogastric tube connected to continuous suction. the nurse should recognize that this pt must have what type of tube? when using chilled normal saline solution during gastric lavage, the nurse should watch for what complications? a nurse should recognize that nasogastric intubation is indicated to relieve gastric distention for what pt? a nurse is caring for a pt who has a newly inserted nasogastric tube. what method is appropriate for verifying the initial placement? a pt recovering from gastric surgery remains NPO & has a nasogastric tube connected to suction. what action should the nurse take to prevent dry mucous membranes? - a nurse is replacing the ostomy appliance for a pt whose newly created colostomy is functioning. after removing the pouch, what should the nurse do first? a nurse is teaching a pt with a new ileostomy about incorporating preventive strategies at home. to prevent excoriation & breakdown of the peristomal skin, the nurse should instruct the pt to a nurse is providing preoperative teaching for an older adult pt who has diverticulitis & is scheduled for a creation of a double-barrel colostomy in the sigmoid colon. what instructions should the nurse include in the teaching? a nurse is providing preoperative teaching for apt who has colon cancer. the surgeon informed the pt that his entire large intestine & rectum will be removed. the nurse should explain the type of ostomy he will have is a nurse is obtaining health hx from a young adult pt who has a colostomy. the pt reports frequent episodes of loose stools over the last month, but has no signs of infection or bowel obstruction. he ports that his concerns about leakage have limited his social activities. what should the nurse recommend? while a nurse is teaching a pt how to replace her ostomy pouching system, the pt reports that removing the skin barrier is sometimes painful. what should the nurse suggest? - a pt who has bladder cancer tells the nurse that, of the various urinary diversion options the surgeon presented, she prefers one that will allow her to have some control over urinary elimination. the nurse should explain the option that will allow that is - a nurse is teaching a pt how to apply an extended-wear skin barrier. what strategies should the nurse instruct the pt to use for maximal adherence? a pt who is postoperative is experiencing abdominal distention and is having difficulty expelling flatus. the nurse should anticipate receiving an order from the provider for what type of enema? a nurse is preparing to administer a cleansing enema to a pt who is prone to fecal incontinence d/t poor sphincter control & is unlikely to retain the enema solution. what interventions is appropriate for this pt? a nurse is preparing an older adult pt for an enema. the nurse should assist the pt to what position? (makes it easier for enema solution to flow by gravity into the sigmoid & descending colon. flexed leg promotes exposure of the anus for insertion of the rectal tube) while a nurse is administering a cleansing enema, the pt reports abdominal cramping. what is the appropriate intervention? a nurse is preparing to administer an oil-retention enema to a pt who has constipation. the nurse explains that the pt should try to retain the instilled oil for a nurse is administering an enema medicated w/ sodium polystyrene sulfonate (Kayexalate) to an older adult pt who has hyperkalemia. the nurse should insert the tip of the rectal tube - 7.5 cm-10 cm (3-4 in) a nurse who is administering a return-flow enema to a pt should instill 100 mL of enema fluid & then a nurse is preparing to administer the first of 2 large-volume, cleansing enemas prescribed for apt in preparation for a diagnostic procedure. what is an appropriate step in the procedure? a nurse is caring for a client who was just admitted to the unit after falling at a nursing home. this client is oriented to person, place, & time & can follow directions. what actions by the nurse are appropriate to decrease the risk of a fall? a nurse manager is reviewing a care of a client who has had a seizure w/ nurses on the unit. what statement by a nurse requires further instruction? a nurse observes smoke coming from under the door of the staff lounge. what is the priority action by the nurse? - a charge nurse is designating room assignments for clients who will be admitted to the unit. based on the nurse's knowledge of fall prevention, what clients should be assigned to the room closest to the nurses' station? a nurse is caring for a newly admitted client who has a documented hx of falls. what is the priority action by the nurse? - a nurse is providing discharge instructions to a client who has a prescription for the use of O2 in his home. what should the nurse teach the client about using oxygen safely in his home? a nurse educator is conducting a parenting class for new parents. what statement made by a participant indicates a need for further clarification and instruction? a home health nurse is discussing the dangers of carbon monoxide poisoning w/ a client. what information should the nurse include in her counseling? a nurse educator is presenting a module on basic first aid for newly licensed home health nurses. the nurse educator evaluates the teaching as effective when the newly licensed nurse states the client who has heat stroke will have what? a home health nurse is discussing the dangers of food poisoning w/ a client. what info should the nurse include in her counseling? a nurse is caring for multiple clients during a mass casualty event. what client is the highest priority? a nurse on a med-surg unit is informed that a mass casualty event occurred in the community & that it's necessary to discharge clients to make beds available for injury victims. what clients can be safely discharged? - a nurse educator is discussing the facility protocol in the event of a tornado w/ the staff. what should the nurse include in the instructions? - an occupational health nurse is caring for an employee who was exposed to an unknown dry chemical, resulting in a chemical burn. what interventions should the nurse include in the plan of care? a security officer is reviewing actions to take in the event of a bomb threat by phone to a group of nurses. what following statements by a nurse indicates understanding of proper procedure? a nurse in a provider's office is assessing a client who reports losing control of urine whenever she coughs, laughs, or sneezes. the client relates a hx of 3 vaginal births, but no serious accidents/illnesses. what interventions are appropriate for helping to control/eliminate the client's incontinence? - a client who has an indwelling catheter reports a need to urinate. what interventions should the nurse perform? - a provider prescribes a 24-hr urine collection for a client. what action should the nurse take? - a nures is preparing to initate a bladder training program for a client who has a voiding disorder. what actions should the nurse take? - 3. remind client to hold urine until next schedule voiding time a nurse educator on a medical unit is reviewing factors that increase the risk of UTIs w/ a group of AP. what should be included in the review? - a nurse is admitting a client from a LTC facility to an acute-care setting. an indwelling urinary catheter was inserted just prior to her transfer. what interventions will help prevent the development of a catheter-associated infection? - a nurse is instructing a client who has diabetes mellitus about foot care. what guidelines should the nurse include? a client develops dyspnea & feels tired after completing her morning care. what should the nurse include in the client's plan of care for the next day? a nurse is beginning a complete bed bath for a client. after removing the client's gown & placing a bath blanket over him, what areas should the nurse wash first? a nurse is preparing to perform denture care for a client who prefers to keep the dentures in a cup while he is resting. what is an appropriate action for caring for the dentures? - a nurse is caring for a client who will perform fecal occult blood testing at home. what information should the nurse include when explaining the procedure to the client? - a nurse is talking w/ a client who reports constipation. when the nurse discusses dietary changes that can help prevent constipation, what foods should the nurse recommend? - a nurse is caring for a client who has had diarrhea for the past 4 days. when assessing the client, the nurse should expect what findings? - a nurse is preparing to administer a cleansing enema to an adult client in preparation for a diagnostic procedure. what are steps for the nurse to take? while a nurse is administering a cleansing enema, the client reports abdominal cramping. what are appropriate interventions? a nurse is caring for a client who's at high risk for aspiration. what's an appropriate nursing intervention? a nurse is preparing a presentation about basic nutrients for a group of high school athletes. she should explain that ________ is the body's priority energy source? - a nurse is caring for a client who's on a low-residue diet. the nurse should expect to see what food on the client's meal tray? a nurse is caring for a client who weighs 80 kg (176 lb) and is 1.6 m (5 ft 3 in) tall. calculate her BMI & determine whether this client is obese. a nurse in a senior center is counseling a group of older adults about their nutritional needs & considerations. what info should the nurse include? a nurse is delivering an enteral feeding to a client who has an NG tube in place for intermittent feedings. when the nurse pours water into the syringe after the formula drains from the syringe, the client asks the nurse why the water is necessary. what is an appropriate response? a nurse is preparing to instill an enteral feeding to a client who has an NG tube in place. what is the nurse's highest assessment priority before performing this procedure? - a nurse is caring for a client who's receiving continuous enteral feedings. what intervention is the highest priority when the nurse suspects aspiration of the feeding? - a nurse is caring for a client in a LTC facility who is receiving enteral feedings via an NG tube. what are appropriate nursing actions prior to administering the tube feeding? * if you can't hear bowel sounds, the pt's GI tract might not be able to absorb nutrients. withhold feedings & notify provider. * most reliable method is to do an x-ray to verify placement of NG tube but it's impractical prior to every feeding. so test the pH of gastric aspirate. a nurse is preparing to insert an NG tube for a client who requires gastric decompression. what actions should the nurse perform before beginning the procedure? a nurse is preparing to administer famotidine (Pepcid) 20 mg PO every 12 hr. available is famotidine 40 mg tablets. how many tables should the nurse administer per dose? tablets a nurse is preparing to administer potassium chloride (K-lor) 15 mEq PO every 12 hr. available is potassium chloride liquid 20 mEq/15 mL. how many mL should the nurse administer per dose? round to nearest whole number. a nurse is preparing to administer acetaminophen (Tylenol) 250 mg PO every 4 hr. available is acetaminophen oral suspension 120 mg/5 mL. how many mL should the nurse administer per dose? round to nearest whole number. a nurse is preparing to administer quinapril (Accupril) 40 mg PO daily. available is quinapril 20 mg tablets. how many tablets should the nurse administer daily? round to nearest whole number. a nurse is preparing to administer ethosuximide (Zarontin) 500 mg PO every 12 hr. available is ethosuximide syrup 250 mg/tsp. how many ML should the nurse administer? round to nearest whole number. a nurse is preparing to administer methylprednisolone (Medrol) 4 mg PO daily. available is methylprednisolone 8 mg tablets. how many tablets should the nurse administer daily? a nurse is preparing to administer hydromorphone (Dilaudid) 4 mg PO every 6 hr PRN for pain. available is hydromorphone oral liquid 5 mg/5 mL. how many mL should the nurse administer per dose? round to nearest whole number. a nurse is preparing to administer doxycycline (Vibramycin) 100 mg PO every 12 hr. available is doxycycline 50 mg tablets. how many tablets should the nurse administer per dose? round to nearest whole number. a nurse is preparing to administer triazolam (Halcion) 0.25 mg PO every 12 hr PRN for agitation. available is triazolam 0.125 mg tablets. how many tablets should the nurse administer per dose? round to nearest whole number. a nurse is preparing to administer furosemide (Lasix) 60 mg PO daily. available is furosemide 40 mg tablets. how many tablets should the nurse administer daily? a nurse is preparing to administer amoxicillin (Amoxil) 500 mg PO every 8 hr. available is amoxicillin oral suspension 250 mg/5 mL. how many tsp should the nurse administer per dose? round to nearest whole number. a nurse is preparing to administer imipramine hydrochloride (Tofranil) 75 mg PO daily. available is imipramine hydrochloride 50 mg tablets. how many tablets should the nurse administer? a nurse is preparing to administer trazodone (Oleptro) 50 mg PO at bedtime. available is trazodone 100 mg tablets. how many tablets should the nurse administer per dose? a nurse is preparing to administer lamivudine (Epivir) 150 mg PO every 12 hr. available is lamivudine oral solution 10 mg/mL. how many mL should the nurse administer per dose? a nurse is preparing to administer a nurse is preparing to administer fluoxetine (Prozac) 35 mg PO daily. available is fluoxetine solution 20 mg/5 mL. how many mL should the nurse administer daily? round to nearest whole number. a nurse is preparing to administer methadone (Dolophine) 10 mg PO every 3 hr. available is methadone 5 mg tablets. how many tablets should the nurse administer per dose? round to nearest whole number. a nurse is preparing to administer rifampin (ifdain) 0.6 g PO daily. available is rifampin 150 mg tablets. how many tablets should the nurse administer? round to nearest whole number. a nurse is preparing to administer albuterol (Proventil) 4 mg PO every 6 hr. available is albuterol syrup 2 mg/5 mL. how many mL should the nurse administer per dose? round to nearest whole number. a nurse is preparing to administer zolpidem (Ambien) 10 mg PO at bedtime. available is zolpidem 5 mg tablets. how many tablets should the nurse administer per dose? a nurse is preparing to administer lithium carbonate (Eskalith) 600 mg PO. available is lithium carbonate 300 mg capsules. how many capsules should the nurse administer? round to nearest whole number. a nurse is preparing to administer methylprednisoline acetate (Depo-Medrol) 15 mg IM every other week. available is methylprednisolone acetate injection 20 mg/mL. a nurse is preparing to administer furosemide (Lasix) 40 mg IV bolus state. available is furosemide injection 10 mg/mL. how many mL should the nurse administer? a nurse is preparing to administer digoxin (Lanoxin) 0.2 mg IV bolus daily. available is digoxin injection 0.1 mg/mL. how many mL should the nurse administer per dose? a nurse is preparing to administer lorazepam (Ativan) 2 mg IV bolus 20 min prior to surgery. available is lorazepam injection 4 mg/mL. how many mL should the nurse administer? round to nearest tenth. a nurse is preparing to administer diazepam (Valium) 3 mg IV bolus every 3 hr PRN for anxiety. available is diazepam injection 5 mg/mL. how many mL should the nurse administer per dose? round to nearest tenth. a nurse is preparing to administer penicillin G benzathine (Bicillin L-A) 1,200,000 units IM every week for 3 weeks. available is penicillin G benzathine injection 2,400,000 units/4 mL. how many mL should the nurse administer per dose? a nurse is preparing to administer levothyroxine (Synthroid) 0.25 mg IV bolus stat. available is levothyroxine injection 500 mcg/mL. how many mL should the nurse administer? round to nearest tenth. a nurse is preparing to administer diazepam (Valium) 7 mg IV bolus every 4 hr PRN for muscle spasm. available is diazepam injection 5 mg/mL. how many mL should the nurse administer per dose? round to nearest tenth. a nurse is preparing to administer ceftriaxone (Rocephin) 400 mg IM every 12 hr. available is ceftriaxone injection 350 mg/mL. how many mL should the nurse administer per dose? round to nearest tenth. what route of drug administration are there no barriers to absorption? what demonstrates correct use of 6 rights of med administration? what exhibits drug tolerance? a pt drinks 8 oz of water. what is the equivalent in mL? what's an example of correct administration of the prescribed medication? what is the most appropriate documentation of a pt's response to a pain med? a drug's generic name is the you're reading the physician's orders and note date and time of the prescriptions as well as the physician's signature. what prescription is complete? what is your highest priority action for ensuring overall safety during med aministration? a uncommon, unexpected, or individual drug response thought to result from a genetic predisposition is called you are giving a pt several po meds to take. the pt tells you that she can only take 1 pill at a time. it's appropriate to what is inhalation medication delivery method is important for the nurse to assess the pt's ability to inhale deeply before administering? a nurse is caring for a pt who's been prescribed a fluticasone propinate (flovent HFA) inhaler w/ a spacer. the pt asks the nurse why a spacer is needed w/ the inhaler. what response by the nurse is correct? a pt is receiving 12.5 mg of prednisone (Deltasone) by mouth daily. med available in 5 mg tablets. how many tablets should the nurse administer for each dose? a nurse is administering aspirin 82 mg PO daily as prescribed. the medication is scheduled for 0800 hours. what demonstrates proper use of one of the 6 rights of med admin? a nurse is preparing to instill antibiotic ear drops into a toddler's ear. what techniques should the nurse use when administering ear drops to this pt? a pt is to receive his daily isoniazid (INH) dosage for tuberculosis. he states he's feeling nauseated with this medication and refuses to take it. the nurse knows that the correct way to indicate this refusal is to a nurse will be administering several meds to a pt who's receiving enteral feedings through a small bore nasogastric tube. the nurse administers the medications correctly by a nurse is teaching the daugther of an older adult pt how to instill eye drops in the pt's right eye. what indicates that the daughter understood the directions? what should a nurse assess before administering meds through a nasogastric tube? what term indicates a medication is given by injection? a nurse is preparing to administer an intradermal injection. what should the nurse do to ensure proper technique? a nurse is administering a subcutaneous injection to a pt. what data should the nurse recognize as the highest priority to prevent potential complications? proper needle length when giving an IM injection in the ventrogluteal area to an average-sized adult is what? a nurse is preparing to given aintramuscular injection into the left ventrogluteal muscle. what should the nurse do to locate the appropriate site? a pt is to receiving 30 mg of ketorolac (toradol) IM every 6 hr for 48 hr. the med is available in a 60 mg/2 mL vial. how many mL should the nurse administer for each dose? a nurse is preparing to administer an insulin injection to a pt. what is appropriate? a nurse administers the first dose of a pt's prescribed antibiotic via IV piggyback. during the first 10-15 min of administration of the medication, the nurse gives priority to what assessment? a nurse is about to administer an IV med directly into the vein. the nurse should understand that a disadvantage of parenterally administered medications is that they a nurse is caring for a pt w/ a peripherally inserted central catheters (PICC line). what is true about this type of IV route? a pt was admitted to the hospital for same day surgery and has orders for continuous IV therapy. before performing a venipuncture, the nurse should a pt is to receive 1 g of ceftriaxone (Rocephin) in 100 mL over 30 min. the tubing drip rate is 10 gtt/mL. the nurse should adjust the flow rate to what infusion rate? a nurse is assessing a pt receiving IV normal saline at 125 mL/hr. what should the nurse recognize as a possible complication related to the IV therapy? a nurse is caring for a pt who's receiving D5W w/ 20 mEq of KCL at 75 mL/hr. the provider has prescribed 1 g ceftriaxone (Rocephin) IV. when preparing to administer this med by IV piggyback, what data is the highest priority for the nurse to collect? a nurse is caring for a pt receiving 0.9% sodium chloride (normal saline) at 75 mL/hr through a triple lumen central venous catheter. the pump is alarming that there is an occlusion. what is the first thing the nurse should do?