RRT RRT Pharmacology 2

Question 1

Racemic epinephrine is primarily used via nebulization to treat which condition in pediatric patients?

Accepted Answer

Croup (laryngotracheobronchitis)

Answer

Racemic epinephrine reduces subglottic edema in croup through alpha-adrenergic-mediated vasoconstriction, relieving stridor.

Question 2

Which drug is used to reverse neuromuscular blockade in patients receiving non-depolarizing agents?

Accepted Answer

Neostigmine

Answer

Neostigmine inhibits acetylcholinesterase, increasing acetylcholine levels at the neuromuscular junction to reverse non-depolarizing blockade.

Question 3

What is the primary indication for inhaled nitric oxide (iNO) therapy?

Accepted Answer

Pulmonary arterial hypertension in neonates with hypoxic respiratory failure

Answer

Inhaled nitric oxide selectively dilates pulmonary vasculature, reducing pulmonary vascular resistance in neonates with hypoxic respiratory failure and PPHN.

Question 4

Which diuretic is most commonly used to reduce pulmonary edema in patients with congestive heart failure?

Accepted Answer

Furosemide

Answer

Furosemide is a loop diuretic that rapidly reduces intravascular volume and preload, relieving pulmonary congestion in CHF.

Question 5

What is the mechanism of action of surfactant replacement therapy?

Accepted Answer

Reduces surface tension in alveoli to prevent collapse

Answer

Exogenous surfactant lowers alveolar surface tension, preventing atelectasis and improving lung compliance in neonates with RDS.

RRT Exam Practice Test

RRT Exam Practice Test

RRT RRT Pharmacology 2