NU 578 UNIT EXAM 3 PREP QUESTIONS WITH 100% CORRECT ANSWERS UPDATED
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NU 578 UNIT EXAM 3 PREP QUESTIONS WITH 100% CORRECT ANSWERS UPDATED
A 60-year-old woman comes to the emergency department with atypical chest pain. Her ECG reveals ventricular tachycardia with rare normal sinus beats, and ST-segment elevation. Troponin C levels are markedly increased, suggestin...
NU 578 UNIT EXAM 3 PREP QUESTIONS
WITH 100% CORRECT ANSWERS
UPDATED 2024-2025
A 60-year-old woman comes to the emergency department with atypical chest pain. Her
ECG reveals ventricular tachycardia with rare normal sinus beats, and ST-segment
elevation. Troponin C levels are markedly increased, suggesting myocardial damage. A
diagnosis of myocardial infarction is made, and the woman is admitted to the cardiac
intensive care unit. Her arrhythmia will probably be treated initially with - (A) Adenosine
(B) Digoxin
(C) Lidocaine
(D) Quinidine
(E) Verapamil
The answer is C
Which of the following drugs slows conduction through the AV node and has a duration
of action of 10-20 seconds? - (A) Adenosine
(B) Amiodarone
(C) Diltiazem
(D) Esmolol
(E) Flecainide
(F) Lidocaine
(G) Mexiletine
(H) Procainamide
(I) Quinidine.
The answer is A
When working in outlying areas, this 62-year-old rancher is away from his house for 12-
14 h at a time. He has an arrhythmia that requires chronic therapy. Which of the
following has the longest half-life of all antiarrhythmic drugs? - (A) Adenosine
(B) Amiodarone
(C) Disopyramide
(D) Esmolol
(E) Flecainide
(F) Lidocaine
(G) Mexiletine
(H) Procainamide
(I) Quinidine
(J) Verapamil
The answer is A
, A drug was tested in the electrophysiology laboratory to determine its effects on the
cardiac action potential in normal ventricular cells. The results are shown in the
diagram.
Which of the following drugs does this agent most resemble?. - (A) Amiodarone
(B) Flecainide
(C) Mexiletine
(D) Procainamide
(E) Verapamil
The answer is B
A 70-year-old retired businessman with a history of chronic heart failure has been taking
digoxin and furosemide. He is now admitted with a history of vomiting, acute
decompensated heart failure, and metabolic derangements. He has marked peripheral
edema and metabolic alkalosis (pH, 7.50; pCO2, 45; HCO3, 36; Na+, 140). Which of the
following drugs is most appropriate for the treatment of his edema? - (A) Acetazolamide
(B) Digoxin
(C) Eplerenone
(D) Hydrochlorothiazide
(E) Tolvaptan
The answer is A
A 50-year-old man has a history of frequent episodes of renal colic with calcium-
containing renal stones. A careful workup indicates that he has a defect in proximal
tubular calcium reabsorption, which results in high concentrations of calcium salts in the
tubular urine. The most useful diuretic agent in the treatment of recurrent calcium
stones is - (A) Chlorthalidone
(B) Diazoxide
(C) Ethacrynic acid
(D) Mannitol
(E) Spironolactone
THE ANSWER IS A
Which of the following is an important effect of chronic therapy with loop diuretics? - (A)
Decreased urinary excretion of calcium
(B) Elevation of blood pressure
(C) Elevation of pulmonary vascular pressure
(D) Metabolic alkalosis
(E) Teratogenic action in pregnancy
The answer is D
Which drug is correctly associated with its actions in the following table? (+ indicates
increase and - indicates decrease.) - Answer Spironolactone causes acidosis
Which of the following diuretics would be most useful in the acute treatment of a
comatose patient with traumatic brain injury and cerebral edema?. - (A) Acetazolamide
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