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Repeated USMLE Questions Step 1- Review- 70

Q- A patient presents with end-stage chronic renal disease. Which of the following substances is most likely increased in blood value in this patient? A- Calcium B- Erythropoietin C- Hematocrit D- Phosphate   Q- Calcitonin acts on which one of the following cell types to decrease serum calcium and bone resorbing activity? A- Osteoblast B- … Read more

Repeated USMLE Questions Step 1- Review- 66

Q- A middle-aged woman presents with trouble vision, amenorrhea and galactorrhea for 4 months. Examination reveals bitemporal hemianopsia. Which of the following tests is most likely beneficial to reach the correct diagnosis? A- Serum glucose B- Serum growth hormone C- Serum prolactin D- Serum TSH C- Serum prolactin- This case is most likely pituitary adenoma. … Read more

Repeated USMLE Questions Step 1- Review- 64

Q- Which one of the following types of protein is the most likely deficient in a case of Duchene muscular dystrophy? A- Actin B- Dystrophin C- Troponin D- Titin Q- Which one of the following locations is the most common site for carcinoid tumors? A- Appendix B- Esophagus C- Colon D- Small intestine E- Stomach … Read more

Repeated USMLE Questions Step 1- Review- 62

Q- A patient complains of loss of vision of the right half of the left eye and the left half of the right eye. Color vision and intraocular pressure are normal. Which of the following is the most likely diagnosis? A- Calcification of the internal carotid artery B- Optic neuritis C- Pituitary macroadenoma D-Retrobulbar neuritis … Read more

Repeated USMLE Questions Step 1- Review- 60

Q- In a case of blood flow obstruction to an alveolus, which of the following changes in ventilation/perfusion ratio, Po2 in the alveoli and Pco2 in the alveoli respectively most likely occur? A- decreases/decreases/decreases B- decreases/decreases/increases C- increases/decreases/decreases D- increases/increases/decreases Q- Which one of the following is the function of retinoblastoma gene in a normal … Read more