Nokea
Sinus bradycardia in neonates is considered if sinus rate is
- A. <100 beats/min
- B. <90 beats/min
- C. <80 beats/min
- D. <70 beats/min
Correct Answer: A
Rationale: Sinus bradycardia in neonates is typically defined as a heart rate <100 beats/min.
You may also like to solve these questions
The following are causes of cyanosis in the presence of 60% oxygen:
- A. Haemoglobin concentration < 5 g%
- B. Methaemoglobinaemia
- C. Thalassaemia
- D. Right to left shunt
Correct Answer: D
Rationale: A right-to-left shunt can cause cyanosis even in the presence of high oxygen levels. Methaemoglobinaemia and severe anemia (Hb < 5 g%) can also cause cyanosis.
Severe pulmonary valve stenosis is defined as a peak gradient of
- A. >40 mm Hg
- B. >45 mm Hg
- C. >50 mm Hg
- D. >55 mm Hg
Correct Answer: C
Rationale: Severe pulmonary valve stenosis is generally defined as a peak gradient >50 mm Hg.
A nurse cares for a client who has an 80% blockage of the right coronary artery (RCA) and is scheduled for bypass surgery. Which intervention should the nurse be prepared to implement while this client waits for surgery?
- A. Administration of IV furosemide (Lasix)
- B. Initiation of an external pacemaker
- C. Assistance with endotracheal intubation
- D. Placement of central venous access
Correct Answer: B
Rationale: An 80% blockage of the RCA can lead to bradycardia or heart block. An external pacemaker may be needed to maintain adequate heart rate and cardiac output.
Recurrent headaches in childhood are seen with:
- A. Tension headaches
- B. Migraine
- C. Sinusitis
- D. Hypermetropia
Correct Answer: B
Rationale: The correct answer is B because migraine is a common cause of recurrent headaches in children. The other options (a, c, d, e) are less common or present differently.
A psychiatric referral is warranted in a preschool child with the following:
- A. Night terrors
- B. Separation anxiety
- C. Scared of ghosts
- D. Masturbation
Correct Answer: B
Rationale: Separation anxiety in a preschool child, especially if it is severe and persistent, may warrant a psychiatric referral to assess for anxiety disorders.