Nokea
A 67-year-old woman with a history of A-fib and an ejection fraction of 48% has had normal digoxin levels. Which can cause a decrease in digoxin level?
- A. Decrease creatinine clearance
- B. Weight loss
- C. Increase exercise
- D. Regular use of antacid
Correct Answer: D
Rationale: Regular use of antacids can decrease the absorption of digoxin, potentially lowering its levels.
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What is the most appropriate first step in treating a patient with acute asthma exacerbation?
- A. Administer oral corticosteroids
- B. Provide oxygen therapy
- C. Administer a short-acting beta-agonist (SABA)
- D. Give intravenous fluids
Correct Answer: C
Rationale: The first line treatment for acute asthma exacerbation is a short-acting beta-agonist to relieve bronchoconstriction
What specific part of the eye is primarily examined using an ophthalmoscope?
- A. Cornea
- B. Lens
- C. Retina
- D. Iris
Correct Answer: C
Rationale: An ophthalmoscope is used to examine the retina, which includes the optic disc and blood vessels.
A patient presents with an elongated head with bony prominence of the forehead, nose, and lower jaw. These facial features could be suggestive of:
- A. Nephrotic syndrome
- B. Acromegaly
- C. Cushing’s syndrome
- D. Parkinson’s disease
Correct Answer: B
Rationale: Acromegaly is characterized by enlargement of bones and soft tissues, leading to features like a prominent jaw and forehead.
Which of the following is the most appropriate treatment for trichomoniasis in a non-pregnant woman?
- A. Metronidazole (Flagyl)
- B. Doxycycline (Vibramycin)
- C. Clindamycin (Cleocin)
- D. Clotrimazole (Lotrimin)
Correct Answer: A
Rationale: Metronidazole is the first-line treatment for trichomoniasis.
Which immunization reduces a patient’s risk for infection with the virus that causes painful localized blistering rash?
- A. Smallpox vaccine
- B. Varicella vaccine (chicken pox)
- C. Shingles (herpes zoster) vaccine
- D. Meningococcal vaccine
Correct Answer: C
Rationale: Shingles vaccine reduces the risk of herpes zoster, which causes painful rash.