A Medical Student Complains of Severe Vomiting and Diarrhea for 2

Multiple Choice

A medical student complains of severe vomiting and diarrhea for 2 days since eating at the Roadkill Café. His blood pressure is 120/70 mmHg supine and 90/50 mmHg standing. His skin and mucous membranes are dry. Which of the following laboratory finding would you expect to find?

A) Low serum aldosterone concentration
B) High atrial natriuretic peptide (ANP) levels
C) Low plasma renin activity
D) Low urinary sodium concentration
E) High urine volume