1.A nurse is caring for a client who has heart failure and a prescription for digoxin 125 mcg PO daily. Available is
digoxin PO 0.25 mg/tablet. How many tablets should the nurse administer per dose? (Round the answer to
...
1.A nurse is caring for a client who has heart failure and a prescription for digoxin 125 mcg PO daily. Available is
digoxin PO 0.25 mg/tablet. How many tablets should the nurse administer per dose? (Round the answer to the
nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
0.5 tablet(s)
Correct Rationale: Ratio and ProportionSTEP 1: What is the unit of measurement the nuse should
calculate? tablet
STEP 2: What is the dose the nurse should administer? Dose to
administer= Desired 125 mcg
STEP 3: What is the dose available? Dose available =
Have 0.25
STEP 4: Should the nurse convert the units of measurement? Yes (mcg
does not equal mg)
1 mg/1000 mcg = x mg/125 mcgX = 0.125 mgSTEP 5:
What is the quantity of the dose available? 1 tablet
STEP 6: Set up an equation and
solve for X.
Have/Quantity = Desired/X
0.25 mg/1 tablet = 0.125 mg/X tablet
X = 0.5
STEP 7: Round if necessary.
STEP 8: Reassess to determine
whether the amount to administer makes sense. If there are 0.25 mg/tab and the provider
prescribed 0.025 mg, it makes sense to administer 1/2 tab. The nurse should administer
digoxin tab PO daily.
Desired Over HaveSTEP 1: What is the unit of
measurement the nurse should calculate? Tablet
STEP 2: What is the dose the nurse
should administer? Dose to administer= Desired 125 mcg
STEP 3: What is the dose
available? Dose available = Have 0.25 mg/tablet
STEP 4: Should the nurse convert
the units of measurement? Yes (mcg does not equal mg)
1 mg/1000 mcg = x
mg/125 mcgX = 0.125 mgSTEP 5: What is the quantity of the dose available? 1
tablet
STEP 6: Set up an equation and solve for X.
Desired x Quantity/Have =
X
0.125 mg x 1 tablet/0.25 mg = X tab0.5 = X
STEP 7: Round if
necessary.
STEP 8: Reassess to determine whether the amount to administer
makes sense. If there are 0.25 mg/tab and the provider prescribed 0.125 mg, it makes
sense to administer 1/2 tab. The nurse should administer digoxin tab PO
daily.
Dimensional AnalysisSTEP 1: What is the unit of measurement the
nurse should calculate? Tablet
STEP 2: What is the quantity of the dose available? 1
tablet
STEP 3: What is the dose available? Dose available = Have 0.25 mg
STEP 4: What is the dose the nurse should administer? Dose to administer= Desired
125 mcg
STEP 5: Should the nurse convert the units of measurement? Yes (mcg
does not equal mg)
1 mg/1000 mcg = x mg/125 mcgX = 0.125 mgSTEP 6:
Set up an equation and solve for X.
X = Quantity/Have x Conversion
(Have)/Conversion(Desired) x Desired/
X tablet = 1 tablet/0.25 mg x 0.125 mg/
X
= 0.5
STEP 7: Round if necessary.
STEP 8: Reassess to determine whether
the amount to administer makes sense. If there are 0.25 mg/tab and the provider
prescribed 0.125 mg, it makes sense to administer 1/2 tab. The nurse should administer
digoxin tab PO daily.
InCorrect Rationale: Ratio and ProportionSTEP 1: What is the unit of measurement the nuse should
calculate? tablet
STEP 2: What is the dose the nurse should administer? Dose to
administer= Desired 125 mcg
STEP 3: What is the dose available? Dose available
= Have 0.25
STEP 4: Should the nurse convert the units of measurement? Yes
(mcg does not equal mg)
1 mg/1000 mcg = x mg/125 mcgX = 0.125
mgSTEP 5: What is the quantity of the dose available? 1 tablet
STEP 6: Set
up an equation and solve for X.
Have/Quantity = Desired/X
0.25 mg/1 tablet
= 0.125 mg/X tablet
X = 0.5
STEP 7: Round if necessary.
STEP 8:
Reassess to determine whether the amount to administer makes sense. If there are 0.25
mg/tab and the provider prescribed 0.025 mg, it makes sense to administer 1/2 tab. The
nurse should administer digoxin tab PO daily.
Desired Over HaveSTEP
1: What is the unit of measurement the nurse should calculate? Tablet
STEP 2:
What is the dose the nurse should administer? Dose to administer= Desired 125 mcg
STEP 3: What is the dose available? Dose available = Have 0.25 mg/tablet
STEP 4: Should the nurse convert the units of measurement? Yes (mcg does not
Created on:11/29/2018 Page 1
Detailed Answer Key
OB
s not equal mg)
1 mg/1000 mcg = x mg/125 mcgX = 0.125 mgSTEP 5:
What is the quantity of the dose available? 1 tablet
STEP 6: Set up an equation
and solve for X.
Desired x Quantity/Have = X
0.125 mg x 1 tablet/0.25 mg =
X tab0.5 = X
STEP 7: Round if necessary.
STEP 8: Reassess to
determine whether the amount to administer makes sense. If there are 0.25 mg/tab and
the provider prescribed 0.125 mg, it makes sense to administer 1/2 tab. The nurse
should administer digoxin tab PO daily.
Dimensional AnalysisSTEP 1:
What is the unit of measurement the nurse should calculate? Tablet
STEP 2: What
is the quantity of the dose available? 1 tablet
STEP 3: What is the dose available?
Dose available = Have 0.25 mg
STEP 4: What is the dose the nurse should
administer? Dose to administer= Desired 125 mcg
STEP 5: Should the nurse
convert the units of measurement? Yes (mcg does not equal mg)
1 mg/1000 mcg
= x mg/125 mcgX = 0.125 mgSTEP 6: Set up an equation and solve for X.
X = Quantity/Have x Conversion (Have)/Conversion(Desired) x Desired/
X
tablet = 1 tablet/0.25 mg x 0.125 mg/
X = 0.5
STEP 7: Round if necessary.
STEP 8: Reassess to determine whether the amount to administer makes sense. If
there are 0.25 mg/tab and the provider prescribed 0.125 mg, it makes sense to
administer 1/2 tab. The nurse should administer digoxin tab PO daily.
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