Developmental delay in children below 3 years of age is defined as
- A. 25% departure from typical performance in 2 developmental domains
- B. 25% departure from typical performance in any developmental domain
- C. 30% departure from typical performance in ≥2 developmental domains
- D. 30% departure from typical performance in any developmental domain
Correct Answer: D
Rationale: Developmental delay in children below 3 years is defined as a 30% departure from typical performance in any developmental domain, indicating significant lag.
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A child born with Down syndrome should be evaluated for which associated cardiac manifestation?
- A. Congenital heart defect (CHD)
- B. Systemic hypertension
- C. Hyperlipidemia
- D. Cardiomyopathy
Correct Answer: A
Rationale: CHD is found frequently in children with Down syndrome.
Which is best described as the inability of the heart to pump an adequate amount of blood to the systemic circulation at normal filling pressures?
- A. Pulmonary congestion
- B. Congenital heart defect
- C. Heart failure
- D. Systemic venous congestion
Correct Answer: C
Rationale: The definition of heart failure is the inability of the heart to pump an adequate amount of blood to the systemic circulation at normal filling pressures to meet the body’s metabolic demands. Pulmonary congestion is an excessive accumulation of fluid in the lungs. Congenital heart defect is a malformation of the heart present at birth. Systemic venous congestion is an excessive accumulation of fluid in the systemic vasculature.
At birth, tunica intima of arterial wall contains all of the following, except
- A. Type IV collagen
- B. Laminin
- C. Endothelial cells
- D. Smooth muscle cells
Correct Answer: D
Rationale: Smooth muscle cells are not typically found in the tunica intima at birth.
While looking through the chart of an infant with a congenital heart defect (CHD) of decreased pulmonary blood flow, the nurse would expect which laboratory finding?
- A. Decreased platelet count
- B. Polycythemia
- C. Decreased ferritin level
- D. Shift to the left
Correct Answer: B
Rationale: Chronic hypoxemia in CHD leads to polycythemia as a compensatory mechanism.
In Wilson's disease:
- A. There is an association with high caeruloplasmin levels
- B. Hepatic copper deposition is pathognomonic
- C. There is increased urinary excretion of copper
- D. There are copper deposits on the cornea
Correct Answer: D
Rationale: Copper deposits on the cornea (Kayser-Fleischer rings) are a hallmark of Wilson's disease, a genetic disorder leading to copper accumulation in tissues.
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