Repeated USMLE Questions Step 1- 366

by



Q- Which of the following cell types is responsible for forming the blood brain barrier (BBB)?

A- Astrocytes

B- Microglia

C- Oligodendrocytes

D- Schwann cells

A- Astrocytes- Microglia mediates immune response, Oligodendrocytes produce myelin in the CNS and SC produce myelin in peripheral NS. 



Q- Which of the following esophageal disorders is the most likely a complication of HIV infection?

A- Achalasia

B- Adenocarcinoma

C- Candida esophagitis

D- Esophageal varices

C- Candida esophagitis- Due to low immunity, others are distractions and not common with HIV. 



Q- Which of the following is the most common etiology of type II diabetes?

A- Altered hormone-receptor complex

B- Increased hepatic glycogen breakdown

C- Insulin receptor deficiency

D- Low insulin production

A- Altered hormone-receptor complex- Low insulin production is the etiology of type 1. 



8 thoughts on “Repeated USMLE Questions Step 1- 366”

  1. Thank you for your comment

  2. Different experts have different opinion about the cause of Diabetes type 2. Generally physicians advice Anti Diabetic medicines & low carbs in meal but no one talks about the root cause.

  3. Dr. Juma, in type 2 diabetes, insulin production is usually normal but the defect is in the receptors. Meanwhile, type 1 diabetes is caused by low or no secretion of insulin. Thank you for your question.

  4. Kindly explain that altered hormone complex in type 2 DM

  5. Thank you Dr. Amin. I am glad that your story brought you to me.

  6. I appreciate you more Dr Ray, because of This way of brainstorming. My story brought me to you

  7. Dr Sunil, insulin resistance is caused by defect in the receptors, not deficiency. There is no evidence of receptor deficiency in type 2 diabetes.
    Thank you so much for your comment.

  8. Question is about type 2 dm. In type 2dm there is insulin resistance so ans should be C. ie insulin receptor deficincey.
    That is my thought process
    Thanks

Leave a Comment