Regarding malaria:
- A. Plasmodium ovale has an exoerythrocytic cycle
- B. Plasmodium malariae does not occur after 5 years of primary illness
- C. Chloroquine is useful for prophylaxis of falciparum malaria in all areas of the world
- D. Primaquine is used to eradicate falciparum malaria
Correct Answer: A
Rationale: Plasmodium ovale has both an exoerythrocytic (liver) and erythrocytic (blood) cycle, which is a characteristic of this species of malaria parasite.
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A 4-month-old infant with a ventricular septal defect (VSD) has dropped from the 20th percentile to the 5th for weight. What will the nurse practitioner recommend?
- A. Adding solid foods to the infant's diet to increase caloric intake
- B. Fortifying breast milk to increase the number of calories per ounce
- C. Stopping breastfeeding and giving 30 kcal/ounce formula
- D. Supplementing breastfeeding with 24 kcal/ounce formula
Correct Answer: B
Rationale: Infants with heart defects who have congestive heart failure (CHF) may need modification of formula or breast milk to increase calories. Fortifying breast milk is the first and best option.
In Asia, the following hepatitis virus appears to be a significant cause of viral myocarditis
- A. hepatitis E virus
- B. hepatitis B virus
- C. hepatitis C virus
- D. hepatitis D virus
Correct Answer: A
Rationale: Hepatitis E virus has been identified as a significant cause of viral myocarditis in Asia.
Severe hypothermia in newborn is defined as temperature below
- A. 28° C
- B. 30° C
- C. 32° C
- D. 34° C
Correct Answer: A
Rationale: Severe hypothermia in newborns is defined as a core body temperature below 28° C, which is life-threatening and requires immediate intervention.
Concerning Ebstein-Barr virus (infectious mononucleosis):
- A. Presence of petechiae between the hard and soft palate supports the diagnosis
- B. Typically a rash following administration of penicillin V occurs
- C. Guillain-Barre syndrome is a recognised sequel
- D. Hepatitis is common
Correct Answer: A
Rationale: Petechiae between the hard and soft palate are a classic sign of infectious mononucleosis. A rash following penicillin V is also common, and Guillain-Barre syndrome is a rare complication.
Which among the following is not a feature of low flow - low gradient severe aortic stenosis with preserved left ventricular function?
- A. Mean trans aortic pressure gradient < 40 mm Hg
- B. Aortic valve area < 1 cm²
- C. Stroke volume > 35 ml/m²
- D. Left ventricular ejection fraction > 50%
Correct Answer: C
Rationale: Stroke volume is typically reduced, not increased, in low flow - low gradient severe aortic stenosis.
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