A 68-year-old man visits his physician complaining of nausea and fatigue. He has not eaten
much in the past few days. Physical examination shows swelling in the ankles and feet. A
kidney function test is performed and the following measurements of inulin are made.
Plasma concentration: 176 mg/mL
Urine concentration: 96 mg/mL
Urine flow: 60 mL/min
What is the patient’s clearance rate in liters/day?
- A. 47
- B. 69
- C. 90
- D. 130
- E. 327
0 voters
A 76-year-old man is brought to the physician because of confusion and vision changes. He
is seeing yellow halos around objects. His past medical history is significant for chronic heart
failure, but he cannot remember his prescriptions. The most likely drug he is taking has what
effect on the heart?
- A. Increase heart rate
- B. Increase contractility
- C. Increase muscle relaxation
- D. Decrease afterload
- E. Decrease oxygen demand
0 voters
A 35-year-old woman visits her physician due to vision changes. She has been running red
traffic lights recently. Immunofluorescent imaging shows that she cannot recognize red
numbers with a green background. Her past medical history is significant for tuberculosis.
The drug most likely causing her symptoms prevents growth of Mycobacterium tuberculosis
through which mechanism?
- A. Inhibits mycolic acid synthesis
- B. Inhibits nucleic acid synthesis
- C. Inhibits arabinogalactan synthesis
- D. Inhibits protein synthesis
- E. Accumulation of pyrazinoic acid
0 voters