Emergency management of acute asthma includes:
- A. Arterial blood gas
- B. Nebulised steroids
- C. Intravenous theophylline
- D. Nebulised ~-antagonists
Correct Answer: D
Rationale: Nebulised beta-antagonists are a key part of the emergency management of acute asthma. Arterial blood gas, nebulised steroids, and intravenous theophylline are also used but are not the first line.
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Normal Heart
- A. Ventricular septal depolarization occurs from Lt ï‚® Rt
- B. During tachycardia diastolic time reduced than systolic time
Correct Answer: B
Rationale: During tachycardia, diastolic time is significantly reduced compared to systolic time.
Nurse Alice is providing cardiopulmonary resuscitation (CPR) to a child, age 4. the nurse should:
- A. Compress the sternum with both hands at a depth of 1½ to 2†(4 to 5 cm)
- B. Deliver 12 breaths/minute
- C. Perform only two-person CPR
- D. Use the heel of one hand for sternal compressions
Correct Answer: D
Rationale: For a 4-year-old, the heel of one hand is appropriate for sternal compressions to achieve the correct depth and avoid injury.
All the following are correct about left ventricular assist device implantation, except
- A. LA pressure is reduced more than RA pressure
- B. A PFO/small ASD is created following LVAD implantation for decompressing LA
- C. Right to left shunting at atrial level can produce systemic desaturation
- D. RV failure is a bad prognostic marker
Correct Answer: B
Rationale: A PFO/small ASD is not typically created following LVAD implantation.
Concerning Ebstein-Barr virus (infectious mononucleosis):
- A. Presence of petechiae between the hard and soft palate supports the diagnosis
- B. Typically a rash following administration of penicillin V occurs
- C. Guillain-Barre syndrome is a recognised sequel
- D. Hepatitis is common
Correct Answer: A
Rationale: Petechiae between the hard and soft palate are a classic sign of infectious mononucleosis. A rash following penicillin V is also common, and Guillain-Barre syndrome is a rare complication.
A 6-month-old presents with tachycardia, tachypnea, and poor feeding for 3 months. Physical examination reveals a continuous machinery murmur and a wide pulse pressure with a prominent apical impulse. The most likely diagnosis is
- A. pulmonic stenosis
- B. aortic stenosis
- C. ventricular septal defect
- D. patent ductus arteriosus
Correct Answer: D
Rationale: Patent ductus arteriosus causes a continuous machinery murmur and wide pulse pressure.
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