Nokea
The following drugs may cause long Q-T syndromes (LQTS) EXCEPT
- A. trimethoprim/sulfamethoxazole
- B. erythromycin
- C. imipramine
- D. pentostam
Correct Answer: D
Rationale: Pentostam is not known to cause long Q-T syndromes.
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Fluids are restricted to 1,500 ml daily for a male client with acute kidney injury (AKI). He is frustrated and complaining of constant thirst, and the nurse discovers that the family is providing the client with additional fluids. Which intervention should the nurse implement?
- A. Remove all sources of liquids from the client's room
- B. Allow family to give client a measured amount of ice chips
- C. Restrict family visiting until the client's condition is stable
- D. Provide the client with oral swabs to moisten his mouth
Correct Answer: D
Rationale: Oral swabs can help alleviate thirst without increasing fluid intake, which is restricted in AKI.
A 2-month-old male presents with tachycardia, dyspnea, tachypnea, and a gallop rhythm with no heart murmur. He was perfectly well until 1 day prior to the episode. The physical examination reveals a heart rate of 235, a temperature of 37.8°C, and a normal blood pressure with warm, well-perfused extremities. The most likely diagnosis is
- A. sepsis
- B. supraventricular tachycardia
- C. ingestion
- D. ventricular tachycardia
Correct Answer: B
Rationale: Supraventricular tachycardia can cause rapid heart rates and heart failure in infants.
Which is an important nursing consideration when suctioning a young child who has had heart surgery?
- A. Perform suctioning at least every hour.
- B. Suction for no longer than 30 seconds at a time.
- C. Administer supplemental oxygen before and after suctioning.
- D. Expect symptoms of respiratory distress when suctioning.
Correct Answer: C
Rationale: If suctioning is indicated, supplemental oxygen is administered with a manual resuscitation bag before and after the procedure to prevent hypoxia. Suctioning should be done only as indicated, not on a routine basis. The child should be suctioned for no more than 5 seconds at one time. Symptoms of respiratory distress are avoided by using appropriate technique.
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.
Which of the following is the proposed algorithm for the evaluation of causes of r′ in V1 and V2?
- A. Wernicke algorithm
- B. Vereckei algorithm
- C. Brugada algorithm
- D. Baranchuk algorithm
Correct Answer: B
Rationale: The Vereckei algorithm is commonly used for the evaluation of r′ in V1 and V2, helping to differentiate between causes of early repolarization.