A 60-year-old rock musician presents to the office because he has been feeling increasingly tired for the past 6 months. He has a history of intravenous drug use and alcohol abuse. He states that he feels quite tired, but he otherwise has no complaints. Physical examination is noncontributory. His laboratory values are normal other than moderately elevated liver enzymes. Which of the following additional tests should you order first?
AHepatitis C virus antibodies
BHepatitis B surface antigen
CHepatitis E virus-specific IgM antibodies
DHepatitis D virus-specific IgG antibody
EHepatitis A virus-specific IgM antibodies
A 65-year-old man presents to his primary care physician for a pre-operative evaluation. He is scheduled for cataract surgery in 3 weeks. His past medical history is notable for diabetes, hypertension, and severe osteoarthritis of the right knee. His medications include metformin, hydrochlorothiazide, lisinopril, and aspirin. His surgeon ordered blood work 1 month ago, which showed a hemoglobin of 14.2 g/dL, INR of 1.2, and a hemoglobin A1c of 6.9%. His vital signs at the time of the visit show BP: 130/70 mmHg, Pulse: 80, RR: 12, and T: 37.2 C. He has no current complaints and is eager for his surgery. Which of the following is the most appropriate course of action for this patient at this time?
ATell the patient he will have to delay his surgery for at least 1 year
BMedically clear the patient for surgery
CRepeat the patient's CBC and coagulation studies
DSchedule the patient for a stress test and ask him to delay surgery for at least 6 months
EPerform an EKG
A student health coordinator plans on leading a campus-wide HIV screening program that will be free for the entire undergraduate student body. The goal is to capture as many correct HIV diagnoses as possible with the fewest false positives. The coordinator consults with the hospital to see which tests are available to use for this program. Test A has a sensitivity of 0.92 and a specificity of 0.99. Test B has a sensitivity of 0.95 and a specificity of 0.96. Test C has a sensitivity of 0.98 and a specificity of 0.93. Which of the following testing schemes should the coordinator pursue?
ATest A on the entire student body followed by Test B on those who are positive
BTest A on the entire student body followed by Test C on those who are positive
CTest C on the entire student body followed by Test B on those who are positive
DTest C on the entire student body followed by Test A on those who are positive
ETest B on the entire student body followed by Test A on those who are positive
+ 7 more in the PDF
Browse all chapters