Nokea
In ventricular arrythmia:
- A. PR interval is prolonged
- B. Common in thyrotoxicosis
- C. Synchronised DC shock is the treatment of choice
- D. IV adenosine treatment is effective
Correct Answer: C
Rationale: Synchronised DC shock is the treatment of choice: In cases of life-threatening ventricular arrhythmias, such as ventricular fibrillation or pulseless ventricular tachycardia, synchronized direct current shock (DC shock) is the recommended treatment.
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Which information should the nurse know when caring for a child with Kawasaki disease?
- A. A child’s fever is usually responsive to antibiotics within 48 hours.
- B. The principal area of involvement is the joints.
- C. Aspirin is contraindicated.
- D. Therapeutic management includes administration of gamma globulin and aspirin.
Correct Answer: D
Rationale: High-dose IV gamma globulin and aspirin therapy is indicated to reduce the incidence of coronary artery abnormalities when given within the first 10 days of the illness. The fever of Kawasaki disease is unresponsive to antibiotics and antipyretics. Mucous membranes, conjunctiva, changes in the extremities, and cardiac involvement are seen. Aspirin is part of the therapy.
Histochemical staining used for diagnosing Hirschsprung's disease is
- A. Acetyl choline esterase
- B. Dopamine
- C. Glutamate
- D. Chromogranin and synaptophysin
Correct Answer: A
Rationale: Acetylcholine esterase staining is used to diagnose Hirschsprung's disease by identifying the absence of ganglion cells.
Toxoplasma gondii infection in humans causes:
- A. Oral ulcers
- B. Cervical lymphadenopathy
- C. Microcephaly
- D. Chorioretinitis
Correct Answer: D
Rationale: Chorioretinitis is a hallmark of congenital toxoplasmosis, leading to vision impairment.
A toddler who has been hospitalized for vomiting due to gastroenteritis is sleeping and difficult to wake up. Assessment reveals: HR: 220 beats per minute (regular) Respiratory rate: 30 per minute BP: 84/52 Capillary refill: 3 seconds Which dysrhythmia does the nurse suspect in this child?
- A. Rapid pulmonary flutter
- B. Sinus bradycardia
- C. Rapid atrial fibrillation
- D. Supraventricular tachycardia (SVT)
Correct Answer: D
Rationale: SVT is typically above 200 beats per minute and can result from dehydration; the rapid rate causes low cardiac output (CO), resulting in low BP and prolonged capillary refill.
Regarding mitral valve prolapse, all the following are true EXCEPT
- A. it is predominantly in girls
- B. it is usually sporadic
- C. the dominant abnormal signs are auscultatory
- D. antibiotic prophylaxis is recommended during surgery and dental procedures
Correct Answer: D
Rationale: Antibiotic prophylaxis is no longer universally recommended for mitral valve prolapse.