Health Care > QUESTIONS & ANSWERS > TMC Practice Questions| 444 QUESTIONS| WITH COMPLETE SOLUTIONS (All)

TMC Practice Questions| 444 QUESTIONS| WITH COMPLETE SOLUTIONS

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Which of the following is typically NOT part of a patient's social history? Correct Answer: B. childhood diseases Which of the following is typically part of a patient's social history? Correct Answer: A. tobacco use C. marital status D. education In observing the intracranial pressure (ICP) monitor of a patient receiving volume control A/C ventilation, you note that the ICP rises by about 3-5 mm Hg during each positive pressure breath. You can conclude that: Correct Answer: D. this is normal variation in ICP Normal variations in ICP occur with both the cardiac and respiratory cycles. Respiratory cycle variations are similar to those observed with CVP and PAWP measures, i.e., falling during spontaneous inspiration but rising with positive pressure breaths. Correct Answer: True An echocardiogram on a one day-old infant with refractory hypoxemia finds no evidence of congenital heart disease but reveals right-to-left shunting through a patent ductus arteriosus, tricuspid valve regurgitation and an enlarged right ventricle. Which of the following is the most likely problem? Correct Answer: C. persistent pulmonary hypertension A patient has an arterial pH of 7.58. What effect will this have on oxygen transport? Correct Answer: A. impaired blood oxygen unloading at the tissues Alkalosis shifts the oxyhemoglobin curve to the left, which increases the affinity of hemoglobin for oxygen. Although this shift increases the arterial Hb saturation and CaO2 (and enhances blood O2 uptake at the lung), it impairs O2 unloading at the tissues. Correct Answer: True A patient has a pH of 7.58 and a PaCO2 of 50 torr. Based on these data, what is the primary acid- base disturbance? Correct Answer: D. metabolic alkalosis To determine the primary acid-base disturbance, first determine whether the pH is low (< 7.35 = academia) or high (> 7.45 = alkalemia). After judging the pH, you then assess the PaCO2. If the pH is low, the primary disturbance must be either respiratory acidosis (PaCO2 > 45 torr) or metabolic acidosis (PaCO2 £ 45 torr). With a high pH, the primary disturbance must be either respiratory alkalosis (PaCO2 < 35 torr) or metabolic alkalosis (PaCO2 ³ 35 torr). Correct Answer: True Results of a sleep study on a 57 year old female reveal an average of 2 apneic periods/hr, each lasting about 6 seconds, and all associated with snoring. During apneic spells, the patient tries to breathe. Which of the following conclusions can you draw from this information? Correct Answer: C. the results of this sleep study are within normal limits

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