Nokea
Which is best described as the inability of the heart to pump an adequate amount of blood to the systemic circulation at normal filling pressures?
- A. Pulmonary congestion
- B. Congenital heart defect
- C. Heart failure
- D. Systemic venous congestion
Correct Answer: C
Rationale: The definition of heart failure is the inability of the heart to pump an adequate amount of blood to the systemic circulation at normal filling pressures to meet the body’s metabolic demands. Pulmonary congestion is an excessive accumulation of fluid in the lungs. Congenital heart defect is a malformation of the heart present at birth. Systemic venous congestion is an excessive accumulation of fluid in the systemic vasculature.
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X-linked conditions include:
- A. Duchenne muscular dystrophy
- B. Hypophosphataemic rickets
- C. Huntington's chorea
- D. Phenylketonuria
Correct Answer: A
Rationale: Duchenne muscular dystrophy is an X-linked recessive disorder caused by mutations in the dystrophin gene.
All the following conditions are associated with high volume pulse except
- A. Aorta to LV tunnel
- B. Coronary cameral fistula
- C. Neonatal Blalock Taussig shunt
- D. Hemitruncus
Correct Answer: C
Rationale: Neonatal Blalock Taussig shunt is not associated with a high volume pulse.
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.
Which intervention should the nurse plan to decrease cardiac demands in an infant with congestive heart disease (CHD)?
- A. Organize nursing activities to allow for uninterrupted sleep.
- B. Allow the infant to sleep through feedings during the night.
- C. Wait for the infant to cry to show definite signs of hunger.
- D. Discourage parents from rocking the infant.
Correct Answer: A
Rationale: The infant requires rest and conservation of energy for feeding. Every effort is made to organize nursing activities to allow for uninterrupted periods of sleep. Whenever possible, parents are encouraged to stay with their infant to provide the holding, rocking, and cuddling that help children sleep more soundly. To minimize disturbing the infant, changing bed linens and complete bathing are done only when necessary. Feeding is planned to accommodate the infant’s sleep and wake patterns. The child is fed at the first sign of hunger, such as when sucking on fists, rather than waiting until he or she cries for a bottle because the stress of crying exhausts the limited energy supply. Because infants with CHD tire easily and may sleep through feedings, smaller feedings every 3 hours may be helpful.
Which of the following statements is true regarding alcohol septal ablation?
- A. Indicated when dynamic LV outflow gradient is more than 50 mm Hg at rest
- B. Targeted septal thickness less than 16 mm is a contraindication
- C. Usually preferred over surgical myomectomy
- D. Reduces risk of sudden death
Correct Answer: A
Rationale: Alcohol septal ablation is indicated when the dynamic LV outflow gradient is more than 50 mm Hg at rest.