USMLE-Rx Step 1 Practice Q's

USMLE-Rx Step 1 Qmax Challenge #3177

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USMLE-Rx Step 1 Qmax Challenge #3177Many tissues in the body, particularly smooth and cardiac muscle, use a cell structure constructed of proteins called connexins, illustrated in the image. These structures allow rapid communication of internal chemical and electrical states between cells, enabling physiological functions such as parturition and the cellular response to environmental stress.

Which of the following labels corresponds to this cell structure?

A. A
B. B
C. C
D. D
E. E

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USMLE-Rx Step 1 Qmax Challenge #3012

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USMLE-Rx Step 1 Qmax Challenge #3012Which of the following conditions is most likely to lead to hypertrophy of the glands shown in the submucosa of this image?

A. Duodenal ulcer disease
B. Gastric ulcer disease
C. Secretin-secreting tumor
D. Somatostatinoma
E. VIPoma

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This practice question is an actual question from the USMLE-Rx Step 1 test bank. For more USMLE Step 1 prep, subscribe to our Flash Facts and Step 1 Express video series. Score the best deal on all three products with a Step 1 Triple Play Bundle.

USMLE-Rx Step 1 Qmax Challenge #3151

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USMLE-Rx Step 1 Qmax Challenge #3151In the image, the cells indicated by the arrow are located in the space of Disse adjacent to hepatocytes.

What vitamin, a derivative of which is commonly used in dermatology, is stored exclusively by the cells marked by the arrow?

A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin E
E. Vitamin K

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This practice question is an actual question from the USMLE-Rx Step 1 test bank. For more USMLE Step 1 prep, subscribe to our Flash Facts and Step 1 Express video series. Score the best deal on all three products with a Step 1 Triple Play Bundle.

USMLE-Rx Step 1 Qmax Challenge #3100

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USMLE-Rx Step 1 Qmax Challenge #3100A 50-year-old man presents to the physician because of right upper quadrant pain and unexpected weight loss. He has a 30-pack-year history of smoking and is a social drinker. On physical examination, a bruit is heard over the liver. Imaging reveals a nodule, which is subsequently biopsied (see image).

Which of the following is associated with these findings?
A. Budd-Chiari syndrome
B. Gilbert’s syndrome
C. Hepatic hemangioma
D. Hepatitis C
E. Primary biliary cirrhosis

———————–

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USMLE-Rx Step 1 Qmax Challenge #3090

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USMLE-Rx Step 1 Qmax Challenge #3090A patient has a hematocrit level of 31.2%, a mean corpuscular volume of 76.5 ?m³, and the peripheral blood smear results shown in the image. This patient’s sibling died from hydrops fetalis.

Which of the following is most likely the cause of the patient’s anemia?

A. ?-Thalassemia
B. ?-Thalassemia
C. Glucose 6-phosphate dehydrogenase deficiency
D. Hereditary elliptocytosis
E. Sickle cell disease

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USMLE-Rx Step 1 Qmax Challenge #3063

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USMLE-Rx Step 1 Qmax Challenge #3063A 50-year-old man comes to the physician complaining of abdominal fullness, fatigue, and weight loss. He reports no fever, chills, or night sweats. On examination his abdomen is soft and nontender but mildly distended, with an enlarged spleen. His most recent complete blood count results are:

Hemoglobin: 10.5
Hematocritct: 31%
WBC count: 3200/mm³
Platelet count: 55,000/mm³
The patient’s peripheral blood smear is shown (see image).

Which of the following disease processes is most likely causing this patient’s problems?

A. Chronic lymphocytic leukemia
B. Chronic myelogenous leukemia
C. Follicular lymphoma
D. Hairy cell leukemia
E. Mantle cell lymphoma

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USMLE-Rx Step 1 Qmax Challenge #3058

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USMLE-Rx Step 1 Qmax Challenge #3058A young woman goes to her primary care physician complaining of 8 weeks of fevers, chills, night sweats, fatigue, and weight loss. About 3 weeks ago she noticed a large bump around her clavicle. The mass is surgically removed and biopsied (see image).

What is the best treatment for this patient’s most likely illness?

A. Imatanib
B. Raloxifene
C. Trastuzumab
D. Valacyclovir
E. Vincristine

———————–

Want to know the ‘bottom line?’ Purchase a USMLE-Rx Subscription and get many more features, more questions, and passages from First Aid, including images, references, and other facts relevant to this question.

This practice question is an actual question from the USMLE-Rx Step 1 test bank. For more USMLE Step 1 prep, subscribe to our Flash Facts and Step 1 Express video series. Score the best deal on all three products with a Step 1 Triple Play Bundle.

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