Nokea
The following enzymes and inhibitors are matched correctly:
- A. Xanthine oxidase-allopurinol
- B. Enolase-fluoride
- C. Cholinesterase-physostigmine
- D. Ceruloplasmin-penicillamine
Correct Answer: A
Rationale: Xanthine oxidase-allopurinol: Allopurinol inhibits xanthine oxidase, which plays a role in purine metabolism, and is used to treat gout and prevent uric acid buildup.
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List FOUR differential diagnoses aside from aortic coarctation for a two-week old infant presenting with tachypnea and poor femoral pulses.
- A. Tachycardia induced cardiomyopathy
- B. Critical aortic stenosis
- C. Dilated cardiomyopathy
- D. Myocarditis
Correct Answer: A
Rationale: Differential diagnoses in such cases can include non-structural heart conditions like tachycardia induced cardiomyopathy, which affects the heart's ability to pump effectively.
Injury to radial nerve involves:
- A. Abductor pollicis brevis is affected
- B. Abduction at the shoulder joint is impaired
- C. Sensory loss on the medial aspect of forearm is seen
- D. First dorsal interosseus is affected
Correct Answer: B
Rationale: Abduction at the shoulder joint is impaired
All of the following are minor criteria in the latest Revised Jones criteria for rheumatic fever in moderate-high risk population except
- A. Monoarthalgia
- B. Fever with body temperature ≥ 38.5°C
- C. ESR 230 mm/hour
- D. Prolonged PR interval
Correct Answer: C
Rationale: ESR 230 mm/hour is not a minor criterion in the Revised Jones criteria for rheumatic fever.
One of the following is a sign of right-sided heart failure of the patient
- A. tachypnea
- B. orthopnea
- C. wheezing
- D. pulmonary edema
Correct Answer: B
Rationale: Right-sided heart failure typically presents with systemic signs like orthopnea and peripheral edema rather than pulmonary edema.
Which client has the highest risk for developing skin cancer?
- A. A 16-year old dark-skinned female who tans in tanning beds once a week
- B. A 65 year-old fair-skinned male who is a construction worker
- C. A 25 year-old dark-skinned male whose mother had skin cancer
- D. A 70 year-old fair-skinned female who works as a secretary
Correct Answer: B
Rationale: Fair-skinned individuals with prolonged sun exposure, such as construction workers, are at higher risk for skin cancer.