The USMLE Step 2 CK tests clinical knowledge along the two dimensions physician task and disease category.
Remember USMLE Step 2 CK scores are required to gain ECFMG certification and USMLE Step 2 CK scores are used to sift through applications. A high score means a better chance of gaining a competitive Residency.
Directions:
Try the USMLE Step 2 CK questions below, pick one best answer from the choices below, then check your answer by clicking on the “get answer” button to see how you did.
Question:
A 38-year-old man is admitted to the hospital after sustaining a pulmonary embolism. The patient has a past medical history significant for two idiopathic deep venous thromboses and takes only an aspirin daily. Three hours ago, he developed acute shortness of breath, pleuritic chest pain, and palpitations. He was taken by the ambulance to the hospital. In the emergency department, he was diagnosed with a pulmonary embolus on the basis of clinical signs and symptoms and a ventilation-perfusion scan. He was started on IV unfractionated heparin at that time. Which of the following laboratory tests would be most appropriate to guide therapy with this drug?
A. A. Bleeding time
B. Factor Xa levels
C. Platelet count
D. Prothrombin time (PT)
E. Partial thromboplastin (PTT)
