Who's Got the Rhythm?
First degree AV block is characterized by a PR interval of at least how many ms?
200
This condition must be suspected in a patient with acute chest pain, pulse deficits, and a widened mediastinum.
What is aortic dissection?
This class of antihypertensives should generally be avoided in pregnancy.
What are ACE inhibitors and ARBs?
This is the first line treatment for hemodynamically stable Torsades De Pointes
What is IV magnesium sulfate?
This complication of an MI classically presents with hypotension, JVD, and muffled heart sounds.
What is cardiac tamponade?
This medication is contraindicated in patients taking nitrates because of the risk of profound hypotension.
What are PDE-5 inhibitors (e.g., sildenafil)?
Antidromic AVRT
SVT with Aberrancy
A fib with Aberrancy
This is the must-not-miss diagnosis in an older patient with abdominal pain out of proportion to examination findings who also has atrial fibrillation.
What is acute mesenteric ischemia? (Do NOT accept colonic ischemia)
This medication should not be given in atrial fibrillation with pre-excitation (WPW) because it may precipitate ventricular fibrillation.
What is an AV nodal blocker, such as verapamil, diltiazem, a beta-blocker, digoxin, or adenosine?
This class of antiarrhythmics is first line for patients with a fib WITHOUT underlying CAD or structural heart disease.
Class IC antiarrhythmics (flecainide and propafenone).
This endocrine emergency presents with hypotension, abdominal pain, hyponatremia, and hyperkalemia.
What is adrenal crisis?
This antibiotic combination can cause severe hyperkalemia when combined with ACE inhibitors or ARBs, especially in older adults or patients with CKD.
What is trimethoprim-sulfamethoxazole?
This nonselective beta-blocker is first-line therapy for preventing arrhythmic events in patients with congenital long QT syndrome.
What is propranolol?
This is the most common cause of sudden cardiac death in young athletes.
What is hypertrophic cardiomyopathy?
This medication is contraindicated in patients with a history of medullary thyroid carcinoma or MEN2.
What are GLP-1 receptor agonists?