Nokea
What does the nurse explain that a ventricular septal defect will allow?
- A. Blood to shunt left to right, causing increased pulmonary flow and no cyanosis
- B. Blood to shunt right to left, causing decreased pulmonary flow and cyanosis
- C. No shunting because of high pressure in the left ventricle
- D. Increased pressure in the left atrium, impeding circulation of oxygenated blood in the circulating volume
Correct Answer: A
Rationale: A ventricular septal defect allows blood to shunt from the left to the right ventricle due to higher left ventricular pressure, increasing pulmonary flow without causing cyanosis.
You may also like to solve these questions
What is the nurse's best response?
- A. Squatting increases the return of venous blood back to the heart.
- B. Squatting decreases arterial blood flow away from the heart.
- C. Squatting is a common resting position when a child is tachycardic.
- D. Squatting increases the workload of the heart.
Correct Answer: A
Rationale: Squatting in tetralogy of Fallot increases venous return, improving systemic circulation and reducing cyanosis.
Which areas of the heart are affected by carditis?
- A. Coronary arteries
- B. Heart muscle and the mitral valve
- C. Aortic and pulmonic valves
- D. Contractility of the ventricles
Correct Answer: B
Rationale: Rheumatic fever carditis affects the heart muscle and commonly the mitral valve, causing inflammation and potential damage.
What does the nurse understand regarding why dyspnea occurs?
- A. Blood is circulated through the lungs again, causing pulmonary circulatory congestion.
- B. Blood is shunted past the pulmonary circulation, causing pulmonary hypoxia.
- C. Blood is shunted past cardiac arteries, causing myocardial hypoxia.
- D. Blood is circulated through the ductus from the pulmonary artery to the aorta, bypassing the left side of the heart.
Correct Answer: A
Rationale: In patent ductus arteriosus, oxygenated blood recycles through the lungs, causing pulmonary congestion and dyspnea.
How would the nurse caring for an infant with congestive heart failure (CHF) modify feeding techniques to adapt for the child's weakness and fatigue?
- A. Feeding more frequently with smaller feedings
- B. Using a soft nipple with enlarged holes
- C. Holding and cuddling the child during feeding
- D. Substituting glucose water for formula
- E. Offering high-caloric formula
Correct Answer: A,B,C,E
Rationale: Smaller, frequent feedings, soft large-holed nipples, cuddling, and high-calorie formula reduce fatigue and support nutrition in CHF.
What are the four structural heart anomalies that make up the tetralogy of Fallot?
- A. Hypertrophied right ventricle
- B. Patent ductus arteriosus
- C. Ventral septal defect
- D. Narrowing of pulmonary artery
- E. Dextroposition of aorta
Correct Answer: A,B,D,E
Rationale: Tetralogy of Fallot includes a hypertrophied right ventricle, patent ductus arteriosus, pulmonary artery stenosis, and dextroposition of the aorta. Note: The document incorrectly lists 'ventral septal defect' instead of 'ventricular septal defect,' but the correct term is assumed.