Nokea
The nurse is caring for a child who has undergone a cardiac catheterization. During recovery, the nurse notices the dressing is saturated with bright red blood. The nurse's first action is to:
- A. Call the interventional cardiologist
- B. Notify the cardiac catheterization laboratory that the child will be returning
- C. Apply a bulky pressure dressing over the present dressing
- D. Apply direct pressure 1 inch above the puncture site
Correct Answer: D
Rationale: Direct pressure above the puncture site helps control bleeding by localizing pressure over the vessel.
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Toddler's diarrhoea is characterised by:
- A. Onset over 18 months
- B. Failure to thrive
- C. Excessive consumption of cow's milk
- D. Undigested food particles in the stool
Correct Answer: D
Rationale: The correct answer is D because undigested food particles in the stool are a hallmark of toddler's diarrhoea. The other options (a, b, c, e) are less specific.
The following conditions are associated with hyperammonaemia:
- A. Reye syndrome
- B. Citrullinaemia
- C. Methylmalonic acidaemia
- D. Homocystinuria
Correct Answer: A
Rationale: Reye syndrome is associated with hyperammonaemia due to liver dysfunction and impaired urea cycle function, leading to ammonia accumulation.
What does the nurse explain that a ventricular septal defect will allow?
- A. Blood to shunt left to right, causing increased pulmonary flow and no cyanosis
- B. Blood to shunt right to left, causing decreased pulmonary flow and cyanosis
- C. No shunting because of high pressure in the left ventricle
- D. Increased pressure in the left atrium, impeding circulation of oxygenated blood in the circulating volume
Correct Answer: A
Rationale: Pulmonary blood flow is increased when a ventricular septal defect exists. The blood shifts from left to right because of the higher pressure in the left ventricle. This particular shift does not cause cyanosis.
Characteristic indices in anaemia of chronic inflammation:
- A. Increased MCV
- B. Decreased ferritin
- C. Decreased transferrin
- D. Normal MCHC
Correct Answer: C
Rationale: Decreased transferrin: In anaemia of chronic inflammation, transferrin levels decrease due to inflammatory cytokines, which affect iron metabolism and its availability for erythropoiesis.
Of the following, the MOST common clinical sign of coarctation of the aorta in older children is
- A. cardiac enlargement
- B. notching of the inferior border of the ribs
- C. a systolic ejection click or thrill in the suprasternal notch
- D. differential blood pressure: arms > legs
Correct Answer: B
Rationale: Notching of the ribs due to collateral circulation is a classic sign of coarctation of the aorta.