USMLE Step 1 Question of the day #75

step 1, question, step 1 questions
Share:

Questions:

Cardiology
1. Calcific aortic stenosis involves calcified nodules at the  _______ of the aortic valve.

Endocrine
2. How do mineralocorticoid levels change in 11-beta-hydroxylase deficiency?

Gastrointestinal
3. Which antacid is associated with hypophosphatemia in overuse?

Biochemistry
4. What are the mRNA stop codons?

Renal
5. _______ is a type of pyelonephritis that affects the cortex with relative sparing of the glomeruli/vessels.

Answers:

1. Calcific aortic stenosis involves calcified nodules at the  _______ of the aortic valve.
A: annulus
Calcific aortic

2. How do mineralocorticoid levels change in 11-beta-hydroxylase deficiency?
A: Decreased aldosterone, but increased 11-deoxycorticosterone
There is decreased Aldosterone but accumulation of 11-deoxycorticosterone which yields an increase in blood pressure.

3. Which antacid is associated with hypophosphatemia in overuse?
A: Aluminum hydroxide
Also involves proximal muscle weakness, osteodystrophy and seizures.

4. What are the mRNA stop codons?
A: UGA; UAA; UAG

5. _______ is a type of pyelonephritis that affects the cortex with relative sparing of the glomeruli/vessels.
A: Acute Pyelonephritis
glomerulivessels

Study Today’s Terms:

Get the Question of the Day delivered to your email!
Consistency is the key to success. Join 1000's of your peers and learn 14 new terms everyday. Or get the questions daily on Twitter | Facebook