MCQs
MCQs
A patient who ate BBQ developed sever diarrhea. at the hospital his blood count shows eosinophilia. the initial investigation to be done to reach the diagnosis is :
- muscle biopsy
- stool bacterial culture
- stool for ova and parasite
- stool WBC
- stool gram stain
the answer : 3
A 45-year-old patient on hemodialysis for one week has noted that his blood pressure is more difficult to control. He reports good compliance with his medications, which include erythropoietin, ferrous sulfate, vancomycin, and vitamin D. His blood pressure is 180/99 mm Hg. Which of the following is the most likely cause for the worsening control of his blood pressure?
- Erythropoietin
- Ferrous sulfate
- Vancomycin
- Vitamin D
- Uremia
the answer is : 1
A 59-year-old man presents to the hospital complaining of cough. The patient describes a cough that has progressively worsened over the past 3 days, becoming more productive of yellowish sputum. He also reports one episode of shaking chills 2 days ago. His past medical history is remarkable for rheumatoid arthritis, for which he takes a nonsteroidal agent for pain control. On examination, his blood pressure is 140/90 mm Hg, and his pulse is 100/min. He has coarse breath sounds over his right base and a normal cardiac examination. Which of the following is the most appropriate diagnostic test for this patient?
- High-resolution chest CT
- Positron emission tomography (PET) scan of the lungs
- MRI of the chest
- Ventilation-perfusion scan
- X-ray films of the chest, posterior-anterior (PA) and lateral views
the answer is : 5
A 29-year-old man is brought to the emergency department in a comatose state a few hours after complaining of sudden onset of excruciating headache. Neurologic examination reveals dilated pupils poorly responsive to light. A CT scan of the head without contrast demonstrates hyperdensity within the suprasellar cistern, while MRI is unremarkable. Lumbar puncture shows hemorrhagic cerebrospinal fluid. Which of the following is the most likely diagnosis?
- Amyloid angiopathy-related hemorrhage
- Cavernous sinus thrombosis
- Hemorrhagic infarction
- Pituitary apoplexy
- Ruptured berry aneurysm
the answer is : 5
An elderly woman consults a physician because she is "feeling so tired all the time". Intraoffice hematocrit is 35%. Peripheral blood smear shows many macrocytic red cells. On questioning, the woman, whose finances are limited, admits that has been living on a "tea and toast" type diet. She has been drinking a powdered orange juice substitute (Tang). She has not been taking vitamin pills because she feels she can't afford them. A nutritional deficiency of which of the following is the most likely cause of this patient's anemia?
- Folate
- Iron
- Vitamin B12
- Vitamin C
- Vitamin K
the answer is : 1