Pharmacology Quiz #20: Phosphodiesterase Inhibitors

1. A 45-year-old man with a history of chronic obstructive pulmonary disease (COPD) is prescribed a new medication to improve his respiratory symptoms. This medication works by inhibiting an enzyme that degrades cyclic AMP, leading to bronchodilation. Which of the following is the most likely mechanism of action of this drug? 

Question 1 of 5

2. A 60-year-old female with pulmonary hypertension is started on a medication that reduces pulmonary vascular resistance and improves symptoms of dyspnea on exertion. This medication likely exerts its therapeutic effect by: 

Question 2 of 5

3. A research team is studying a new drug for the treatment of heart failure. This drug is found to increase myocardial contractility and decrease symptoms of fatigue and shortness of breath in affected patients. The drug's mechanism of action is most likely related to: 

Question 3 of 5

4. A man is prescribed a medication for erectile dysfunction. This medication enhances the effect of nitric oxide by inhibiting the degradation of a specific cyclic nucleotide in penile smooth muscle, leading to vasodilation and erection. This drug is most likely: 

Question 4 of 5

5. A pediatric patient with a severe form of congenital heart disease is treated with a medication post-surgery to manage pulmonary hypertension and facilitate recovery. This medication works by inhibiting a specific enzyme, leading to vasodilation of the pulmonary vasculature. The medication used is most likely: 

Question 5 of 5


 

¡Por tiempo limitado!

Unete a nuestro boletín mensual y obtén todos nuestros talleres USMLE/ECFMG ¡GRATIS! (+100 videos)

¡Únete a nuestra comunidad de IMGs!

¡Obtén actualizaciones mensuales USMLE y ECFMG, además, obtén un taller USMLE gratis al instante!

"Taller 01: ¿Qué es el USMLE?”

Taller Gratuito USMLE

Este taller proporciona un análisis en profundidad de todos los exámenes USMLE, consejos para tomar exámenes y cómo estudiar de manera efectiva.

OFERTA POR TIEMPO LIMITADO

Especialista ECFMG: Dr. Carla Rebeca Lainez Casal

Facultad de Medicina: Universidad Catholica de Santiago de Guayaquil
ECFMG Certification date: October 13, 2022.
Residency: 2023 Internal Medicine Applicant
+1 7542724970