Prepare for the Registered Respiratory Therapist CSE with comprehensive flashcards and multiple-choice questions, including hints and explanations. Ace your exam with confidence!

Multiple Choice

Which of the following is a drug category listed for pulmonary HTN treatment?

Focusing on the heart’s function is key in pulmonary hypertension, because the right ventricle has to pump against a high afterload. Inotropic agents boost the heart’s contractility, which helps the failing right ventricle generate more force and improve cardiac output. Digoxin (a cardiac glycoside) increases intracellular calcium, enhancing myocardial contraction and stability of heart rhythms in some patients. This direct improvement of ventricular performance is why an inotropic category is the best fit for PH treatment among the options. Diuretics are used to reduce fluid overload but don’t increase contractility. Blood thinners may be used in certain PH situations to prevent thrombosis, but they don’t directly support the heart’s pumping strength. Antibiotics address infections, not PH itself. So the inotropic agents category best matches the therapeutic goal of supporting the failing right ventricle in pulmonary hypertension.

Focusing on the heart’s function is key in pulmonary hypertension, because the right ventricle has to pump against a high afterload. Inotropic agents boost the heart’s contractility, which helps the failing right ventricle generate more force and improve cardiac output. Digoxin (a cardiac glycoside) increases intracellular calcium, enhancing myocardial contraction and stability of heart rhythms in some patients. This direct improvement of ventricular performance is why an inotropic category is the best fit for PH treatment among the options.

Diuretics are used to reduce fluid overload but don’t increase contractility. Blood thinners may be used in certain PH situations to prevent thrombosis, but they don’t directly support the heart’s pumping strength. Antibiotics address infections, not PH itself. So the inotropic agents category best matches the therapeutic goal of supporting the failing right ventricle in pulmonary hypertension.