Repeated USMLE Questions Step 1- Review- 343

Q- Which one of these medication groups is contraindicated in a patient with narrow-angle glaucoma?

A- Beta blockers

B- Cholinomimetics

C- Diuretics

D- Muscarinic-receptor antagonists

D- Muscarinic-receptor antagonists- Muscarinic-receptor antagonists cause pupillary dilation, which can further narrow the anterior chamber angle and precipitate acute angle-closure glaucoma. They are therefore contraindicated in narrow-angle glaucoma.

 

Q- Which of the following statements is true about a live attenuated vaccine?

A- Close contacts of influenza patients can be safely vaccinated with the live attenuated vaccine

B- It is mainly used for immunocompromised patients

C- No booster is needed for live attenuated vaccines

D- They only induce humoral immunity

C- No booster is needed for live attenuated vaccines- Live attenuated vaccines replicate in the body and produce a strong, long-lasting immune response, so boosters are generally not required. Live vaccines are not used in immunocompromised patients, they induce both humoral and cell-mediated immunity, and close contacts of certain high-risk patients should avoid the intranasal live influenza vaccine.



Q- Which of the following is not a feature of Tetralogy of Fallot?

A- Atrial septal defect

B- Overriding aorta

C- Pulmonary stenosis

D- Right ventricular hypertrophy

A- Atrial septal defect-

Tetralogy of Fallot consists of four classic defects:

  1. Ventricular septal defect

  2. Overriding aorta

  3. Pulmonary stenosis

  4. Right ventricular hypertrophy

An atrial septal defect is not part of the tetralogy.

 

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2 thoughts on “Repeated USMLE Questions Step 1- Review- 343”

  1. Hi Shibiru, could you please explain your request? Thank you

  2. Hi, Dear!
    Shall I take exam concerning clinical Pharmacy.I’m from Ethiopia,east Africa

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