Defects of complement system should be suspected in:
- A. Recurrent folliculitis
- B. Facial swelling following trauma
- C. Recurrent meningococcal infection
- D. Pneumocystis carinii pneumonia
Correct Answer: C
Rationale: Recurrent meningococcal infection: Defects in the complement system, especially the terminal complement components, increase the risk of recurrent meningococcal infections.
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The following are causes of congestive heart failure and cardiomegaly during the newborn period but no murmur EXCEPT
- A. endocardial fibroelastosis
- B. asphyxia
- C. glycogen storage disease (Pompe disease)
- D. sepsis
Correct Answer: D
Rationale: Sepsis can cause heart failure and cardiomegaly but often presents with other systemic signs.
Which of the following statements is incorrect regarding shock?
- A. In cardiogenic shock systemic vascular resistance is high
- B. In hypovolemic shock pulmonary capillary wedge pressure is reduced
- C. In distributive shock central venous pressure is increased
- D. In hypovolemic shock mean arterial pressure is normal
Correct Answer: D
Rationale: In hypovolemic shock
Nurse Betina should begin screening for lead poisoning when a child reaches which age?
- A. 6 months
- B. 12 months
- C. 18 months
- D. 24 months
Correct Answer: B
Rationale: Screening for lead poisoning typically begins at 12 months, as children at this age are more likely to be exposed to lead through crawling and hand-to-mouth activities.
The most likely diagnosis in the patient is
- A. patent ductus arteriosus
- B. critical aortic stenosis
- C. critical pulmonic stenosis
- D. tetralogy of Fallot
Correct Answer: D
Rationale: Tetralogy of Fallot involves right ventricular hypertrophy, a VSD, overriding aorta, and pulmonary stenosis, consistent with the findings.
Short stature due to growth hormone deficiency:
- A. Is characteristically manifest in infancy
- B. May be secondary to irradiation to the skull
- C. Can be part of congenital hypopituitarism
- D. Is easily corrected
Correct Answer: B
Rationale: Growth hormone deficiency can result from cranial irradiation, which may damage the pituitary gland and impair hormone production.