Nokea
Ventricular tachycardia (VT) is defined as at least 3 premature ventricular contractions PVCs at >120 beats/min. Hemodynamically unstable patients with VT should be immediately treated with
- A. catheter ablation
- B. ICD implantation
- C. DC cardioversion
- D. amiodarone
Correct Answer: C
Rationale: DC cardioversion is the immediate treatment for hemodynamically unstable VT.
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Duchenne muscular dystrophy (DMD):
- A. Affects dystrophin gene
- B. Features usually present before five years of age
- C. Frontal baldness occurs
- D. Is part of the differential diagnosis in a floppy infant
Correct Answer: B
Rationale: Features usually present before five years of age
A pediatric patient is scheduled for a noninvasive procedure to determine if his heart is structurally normal and to localize a murmur. What diagnostic test does the nurse anticipate?
- A. Barium swallow
- B. Chest x-ray
- C. Electrocardiogram
- D. Echocardiogram
Correct Answer: D
Rationale: Echocardiography is a noninvasive procedure that localizes murmurs and determines if the heart is structurally normal.
Family discharge teaching has been effective when the parent of a toddler diagnosed with Kawasaki disease (KD) states:
- A. The arthritis in her knees is permanent. She will need knee replacements.
- B. I will give her diphenhydramine (Benadryl) for her peeling palms and soles of her feet.
- C. I know she will be irritable for 2 months after her symptoms start.
- D. I will continue with high doses of Tylenol for her inflammation.
Correct Answer: C
Rationale: This statement indicates the parent understands that irritability may persist for about 2 months after symptom onset in KD.
The school nurse has been following a child who frequently complains of dizziness and headache. Today, she is brought in after fainting in the cafeteria following a nosebleed. Her BP is 122/85, and her radial pulses are bounding. The nurse suspects she has:
- A. Transposition of the great vessels
- B. Coarctation of the aorta (COA)
- C. Aortic stenosis (AS)
- D. Pulmonic stenosis (PS)
Correct Answer: B
Rationale: In older children, COA can cause elevated blood pressure, headache, fainting, and bounding radial pulses.
Indications for an exchange transfusion include:
- A. ABO incompatibility
- B. Acute chest syndrome
- C. Sepsis
- D. Polycythaemia
Correct Answer: A
Rationale: Exchange transfusion is indicated in conditions like ABO incompatibility to prevent severe hemolytic disease in newborns. Acute chest syndrome sepsis polycythaemia and sickle nephropathy are not typical indications for exchange transfusion.