The following features are more suggestive of biliary atresia rather than neonatal hepatitis in an infant 6 weeks of age:
- A. Hepatomegaly
- B. Prolonged INR (prothrombin time)
- C. Biopsy specimen showed proliferation of bile ductules, periportal fibrosis and bile lakes
- D. HillA scan reveals delayed uptake and excretion of the contrast material
Correct Answer: C
Rationale: Proliferation of bile ductules, periportal fibrosis, and bile lakes on biopsy are hallmark features of biliary atresia.
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Increased TSH is seen in a neonate with:
- A. Thyroxine insensitivity
- B. Iodine deficiency
- C. Hyperbilirubinaemia
- D. Thyroid agenesis
Correct Answer: B
Rationale: Iodine deficiency: Neonates with iodine deficiency often present with increased TSH levels as the body attempts to compensate for low thyroid hormone production.
Varying intensity of the first heart sound from a booming (bruit de canon) to virtual inaudibility is seen in which of the following?
- A. Mitral stenosis with atrial fibrillation
- B. Constant 2:1 AV block
- C. First-degree AV block
- D. Congenital complete heart block
Correct Answer: A
Rationale: In mitral stenosis with atrial fibrillation, the intensity of the first heart sound can vary depending on the dynamics of atrial contraction and ventricular filling.
An adult client is admitted with flank pain and is diagnosed with acute pyelonephritis. What is the priority nursing action?
- A. Auscultate for presence of bowel sounds.
- B. Monitor hemoglobin and hematocrit
- C. Encourage turning and deep breathing
- D. Administer IV antibiotics as prescribed.
Correct Answer: D
Rationale: Administering IV antibiotics promptly is critical to treat the infection and prevent complications in acute pyelonephritis.
A 4-year-old child presents to the clinic with a history of persistent dry cough and wheezing. What is the nurse’s primary concern?
- A. Allergic reaction
- B. Asthma exacerbation
- C. Respiratory infection
- D. Acute bronchiolitis
Correct Answer: B
Rationale: Wheezing and persistent dry cough are hallmark symptoms of asthma exacerbation, which is the nurse's primary concern.
Hypertrophic obstructive cardiomyopathy
- A. Causes LV outflow tract obstruction
- B. Occurs after adenoviral infection
- C. Commonly occurs in infancy
- D. Double apical impulse
Correct Answer: A
Rationale: Hypertrophic obstructive cardiomyopathy primarily causes left ventricular outflow tract obstruction.