Question 1 - redceo123

[ArchivalUser]

An 18-year-old female athlete reports easy fatigability and weakness. Physical examination shows no abnormalities. Laboratory studies show:

Serum:
Na+ 141 mEq/L
Cl− 85 mEq/L
K+ 2.1 mEq/L
HCO3− 35 mEq/L

Urine:
Na+ 80 mEq/24 h
K+ 170 mEq/24 h

Which of the following is the most likely diagnosis?

(A) Aldosterone deficiency
(B) Anxiety reaction with hyperventilation
© Diabetic ketoacidosis
(D) Ingestion of anabolic steroids
(E) Surreptitious use of diuretics


Please explain why you chose your answer. Thanks

[ArchivalUser]

Every athlete on USMLE is on anabolic steroids. Steroids produce, amond their very many side effects, muscle weakness and electrolite imbalance: decreased Ca++, K+ and increase Na+

[ArchivalUser]

Ans dd
Thanks

[ArchivalUser]

please try again

[ArchivalUser]

@Red Age/ath/lab-> abuse of diu

[ArchivalUser]

***ding ding ding cardio69 right answer is EEE***

Hypokalemia and low Hco3 and low serum Cl = contraction alkalosis.

one of the main causes is diuretic abuse. other two being vomiting and mineralocorticoid excess.

a female athlete, on usmle q's is usually a/w diuretic abuse, stress # of tibia or metatarsal bones and anorexia nervosa.