Respiratory - CHF Versus Asthma-COPD

Question 1

Patients in CHF present with many of the same symptoms as asthma/COPD. What symptoms may be present with CHF?

Answer 1

• rales
• pedal edema
• JVD

Question 2

Explain aortic insufficiency with CHF.

Answer 2

• Aortic valvular disorder - during diastole, some blood back flows into the ventricle due to aortic valve problem.
• Backflow causes increased pre-load
• Pre-load eventually continues to increase until Frank-Starling mechanism is no longer effective

Question 3

On a molecule-per-molecule basis, Angiotensin II is a ____ times more powerful vasoconstrictor than norepinephrine.

Answer 3

40