A 72-year-old patient with atrial fibrillation presents with sudden left-sided weakness. Transesophageal echocardiography demonstrates dense spontaneous echo contrast within the left atrial appendage. What is the most likely clinical implication of this finding?

Which of the following antiemetics carries a Boxed Warning for development of tardive dyskinesia following long-term use (greater than 12 weeks of use)?

Which of the following blood pressure ranges is classified as Stage I hypertension?

A manufacturer claims that 95% of its light bulbs last more than 1000 hours. Test at the 3% significance level whether the true proportion is different from 95%. For the rejection criterion, should you use Zα​ or Zα/2​? What is its numerical value of Zα​ or Zα/2 in this problem? 

Alternative hypothesis is p > 0.8 and α = 0.07, what is the value of β(0.75) for n = 90? Use the following formula. Show all your work on paper.

Which cardiac rhythm is most strongly associated with left atrial appendage (LAA) thrombus formation?

Which Doppler modality is most appropriate for localizing the origin (level) of left ventricular outflow tract (LVOT) obstruction in cardiomyopathies?  

What are the fingerlike ends of the uterine tube called?

An engineering department states that the average voltage output of a sensor is 12 volts. A sample of 25 sensors gives a mean output of 11.6 volts with a sample standard deviation of 0.8 volts. Test whether the average voltage output is at most 12 volts. Write the following in the given space. Use “u” for average of the population and “p” for the proportion of the poluplation. Null: Alternative: Which distribution and why?

Which cardiomyopathy is believed to originate during fetal cardiac development (ontogenesis)?