Author: Anonymous

A 78-year-old man develops irregularly irregular palpitations and dyspnea. ECG shows atrial fibrillation. Which pathophysiologic consequence is most important for long-term stroke prevention?  

A 70-year-old patient with sepsis develops diffuse oozing from IV sites and new renal dysfunction. Labs show thrombocytopenia, prolonged PT and aPTT, low fibrinogen, and markedly elevated D-dimer. Which pathophysiologic process is occurring?    

A patient has leukopenia, thrombocytopenia, and anemia after chemical exposure. Which disorder best fits pluripotent stem-cell failure?  

A 33-year-old postpartum patient develops unilateral leg swelling after prolonged bed rest. Ultrasound confirms a proximal DVT. Which pathophysiologic contributor most directly promoted clot formation in this scenario?

A 40-year-old has episodic headache, sweating, palpitations, and severe BP spikes. Which mechanism best explains the hypertension?

A patient stands up quickly and becomes lightheaded. Which immediate reflex response should occur in a healthy person?

A 55-year-old woman with metastatic cancer presents with dyspnea and hypotension. Echo shows a large pericardial effusion. Which immediate hemodynamic consequence explains her hypotension?

A patient develops diffuse hives, wheezing, and hypotension within minutes of peanut exposure. Which mediator most directly causes the rapid endothelial cell retraction that produces angioedema?

What can you conclude from these graphs about the environmental factor(s) that causes flowering in short-day plants?

Asexual reproduction is advantageous to plants because it: