Nokea
The most common site of osteosarcoma is:
- A. Femur
- B. Humerus
- C. Pelvis
- D. Skull
Correct Answer: A
Rationale: Osteosarcoma most commonly occurs in the long bones, particularly the femur, near the growth plates in children and adolescents.
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Urinary tract infection:
- A. Usually leads to vesico-ureteric reflux
- B. Is more common in boys than girls under a year of age
- C. In boys,is most commonly caused by Proteus mirabilis
- D. Is associated with constipation
Correct Answer: D
Rationale: Urinary tract infections (UTIs) are often associated with constipation in children, as stool retention can increase the risk of bacterial colonization in the urinary tract.
Biochemical abnormalities in a chronic carrier of hepatitis B are:
- A. Raised AST
- B. Low serum albumin
- C. Raised gamma GT
- D. Raised transferrin
Correct Answer: A
Rationale: The correct answer is A because chronic hepatitis B carriers often have raised AST (aspartate aminotransferase) due to liver inflammation. The other options are less specific or not typically associated with chronic hepatitis B.
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. Decreased ferritin level
- C. Respiratory alkalosis
- D. Polycythemia
Correct Answer: D
Rationale: Polycythemia is often seen in infants with congenital heart defects that cause decreased pulmonary blood flow, as the body produces more red blood cells to compensate for low oxygen levels.
Complement C3 levels are decreased in:
- A. Systemic lupus erythematoses
- B. Henoch-Schoenlein purpura
- C. Haemolytic uraemic syndrome
- D. Type II membrano-proliferative glomerulonephritis
Correct Answer: A
Rationale: Decreased C3 levels are characteristic of systemic lupus erythematosus due to immune complex deposition and complement consumption.
In neonates with anomalous total pulmonary venous return and obstruction, the chest x-ray demonstrates
- A. heart enlarged
- B. prominent pulmonary artery
- C. prominent right ventricle
- D. prominent subaortic stenosis
Correct Answer: D
Rationale: Prominent subaortic stenosis is not typically seen in TAPVR.