Nokea
A diagnosis of primary pulmonary hypertension of the newborn can be made if:
- A. Oxygen saturation in the hand is 80% and in the foot 67%
- B. A tachypnoeic baby has a saturation of 60%
- C. A baby with history of being covered in thick meconium at birth has PaO2 of 4kPa
- D. A septic baby is hypoxic in 100% oxygen
Correct Answer: A
Rationale: A significant difference in oxygen saturation between the upper and lower extremities (e.g., hand 80%, foot 67%) is indicative of persistent pulmonary hypertension of the newborn (PPHN).
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Acetazolamide:
- A. Is used in the management of renal tubular acidosis
- B. Causes hypokalaemia
- C. Is usually given intravenously
- D. Inhibits the action of carbonic anhydrase
Correct Answer: D
Rationale: Inhibits the action of carbonic anhydrase: Acetazolamide works by inhibiting carbonic anhydrase, reducing the reabsorption of bicarbonate in the kidneys and helping with conditions like glaucoma, metabolic alkalosis, and altitude sickness.
Indications for surgical closure of a VSD include the following EXCEPT
- A. patients who cannot thrive
- B. patients whose symptoms cannot be controlled between 6 and 24 months
- C. patients with pulmonary vascular disease
- D. patients older than 2 years with a large VSD associated with a Qs ratio greater than 2:1
Correct Answer: C
Rationale: Surgical closure is not routinely indicated for all VSDs, especially if asymptomatic.
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.
A nurse assesses a client 2 hours after a cardiac angiography via the left femoral artery. The nurse notes that the left pedal pulse is weak. Which action should the nurse take?
- A. Elevate the leg and apply a sandbag to the entrance site.
- B. Increase the flow rate of intravenous fluids.
- C. Assess the color and temperature of the left leg.
- D. Document the finding as the left pedal pulse of +1/4.
Correct Answer: C
Rationale: A weak pedal pulse after cardiac angiography may indicate compromised blood flow. Assessing the color and temperature of the leg helps determine if there is ischemia or other complications.
What are THREE classes of medication used to treat giant coronary artery aneurysms in Kawasaki Disease?
- A. ACE inhibitor
- B. Beta blocker
- C. Statin
- D. All of the above
Correct Answer: D
Rationale: These medications are typically used in the management of giant coronary artery aneurysms to manage cardiovascular risks.