11-21-2011, 07:46 AM
An experiment is done to ascertain the effects of a drug in a healthy subject:
Before injection After injection
of the drug of the drug
10 min 20 min
Urine volume (mL/min) 5 22 18
Urinary osmolality (mOsm/kg) 1200 800 300
Urinary Na+ excretion (mEq/min) 0.5 4 3
Plasma renin activity (ng/L/min) 25 90 100
112. The drug injected was most likely
(A) acetazolamide
(B) furosemide
© hydrochlorothiazide
(D) spironolactone
(E) triamterene
113. In addition to the effects listed, the drug can be expected to
(A) decrease excretion of calcium
(B) decrease excretion of potassium
© decrease hematocrit
(D) increase plasma concentration of aldosterone
(E) increase plasma concentration of potassium
Before injection After injection
of the drug of the drug
10 min 20 min
Urine volume (mL/min) 5 22 18
Urinary osmolality (mOsm/kg) 1200 800 300
Urinary Na+ excretion (mEq/min) 0.5 4 3
Plasma renin activity (ng/L/min) 25 90 100
112. The drug injected was most likely
(A) acetazolamide
(B) furosemide
© hydrochlorothiazide
(D) spironolactone
(E) triamterene
113. In addition to the effects listed, the drug can be expected to
(A) decrease excretion of calcium
(B) decrease excretion of potassium
© decrease hematocrit
(D) increase plasma concentration of aldosterone
(E) increase plasma concentration of potassium