Nokea
The following criteria are indications for further investigation of premature ventricular contractions (PVCs) that could require suppressive therapy EXCEPT
- A. multiform PVCs
- B. disappear during exercise
- C. R-on-T phenomenon
- D. extreme frequency of beats
Correct Answer: B
Rationale: PVCs that disappear during exercise are less concerning and do not necessarily require suppressive therapy.
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Which statement by the mother of a child with rheumatic fever (RF) shows she has a good understanding of the care of her child?
- A. I will apply heat to his swollen joints to promote circulation.
- B. I will have him do gentle stretching exercises to prevent contractures.
- C. I will give him the aspirin that is ordered for pain and inflammation.
- D. I will apply cold packs to his swollen joints to reduce pain.
Correct Answer: C
Rationale: Aspirin is the drug of choice for treating RF due to its anti-inflammatory and analgesic properties.
A wide splitting of S2 during expiration is auscultated in a 2-week-old infant.
- A. Atrial septal defect (ASD)
- B. Coarctation of the aorta (COA)
- C. Patent ductus arteriosis (PDA)
- D. Ventricular septal defect (VSD)
Correct Answer: A
Rationale: A wide splitting of S2 without becoming a single sound on expiration may indicate increased pulmonary flow, typical of atrial septal defect.
Evidence of increased pulmonary flow is associated with:
- A. Coarctation of the aorta
- B. Fallot's tetralogy
- C. Pneumocystis infection
- D. Ventricular septal defect
Correct Answer: D
Rationale: A ventricular septal defect (VSD) leads to increased pulmonary blood flow due to left-to-right shunting, resulting in pulmonary congestion.
The following tests are routine in the management of an epileptic on carbamazepine:
- A. Blood counts
- B. Serum levels
- C. Liver function tests
- D. Renal function tests
Correct Answer: C
Rationale: Liver function tests are routinely monitored in patients taking carbamazepine due to the risk of liver toxicity, which can occur with prolonged use.
Regarding cranial nerves:
- A. Meningioma of the olfactory groove may cause unilateral anosmia
- B. Lesion in the geniculate ganglion produces hyperacusis
- C. Frontalis muscle is spared in lower motor neuron facial palsy
- D. In oculomotor palsy, pupillary sparing occurs in early stages of external compression of the nerve by a tumour
Correct Answer: A
Rationale: Meningioma affecting the olfactory groove can compress the olfactory nerve, leading to unilateral anosmia.