Nokea
Which of the following is an example of ductus dependent systemic circulation?
- A. Severe Ebstein's anomaly
- B. Pulmonary atresia
- C. Tricuspid atresia
- D. Interruption of aortic arch
Correct Answer: D
Rationale: Interruption of aortic arch is ductus dependent as it relies on the ductus arteriosus for systemic blood flow.
You may also like to solve these questions
An infant is hospitalized for treatment of nonorganic failure to thrive. Which nursing action is most appropriate for this infant?
- A. Encouraging the infant to hold a bottle
- B. Keeping the infant on bed rest to conserve energy
- C. Rotating caregivers to provide more stimulation
- D. Maintaining a consistent, structured environment
Correct Answer: D
Rationale: A consistent, structured environment helps build trust and security, which is essential for an infant with nonorganic failure to thrive.
Prior to the patient being given medication, he becomes hypotensive, mottled, and cold. His heart rate is 240. The next therapeutic step should be
- A. digoxin
- B. synchronized DC cardioversion
- C. lidocaine
- D. defibrillation
Correct Answer: B
Rationale: Synchronized DC cardioversion is indicated for unstable tachycardia unresponsive to pharmacological agents.
A nurse assesses an older adult client who is experiencing a myocardial infarction. Which clinical manifestation should the nurse expect?
- A. Excruciating pain on inspiration
- B. Left lateral chest wall pain
- C. Disorientation and confusion
- D. Numbness and tingling of the arm
Correct Answer: C
Rationale: Older adults may present with atypical symptoms of myocardial infarction, such as confusion or disorientation, rather than classic chest pain.
Superior axis in ECG seen in
- A. AV canal defects
- B. Ebstein anomaly
- C. Tricuspid atresia
- D. Single ventricle
Correct Answer: B
Rationale: Ebstein's anomaly causes superior axis deviation on ECG.
The nurse is preparing to administer a dose of digoxin (Lanoxin) to a child in heart failure (HF). Which is a beneficial effect of administering digoxin (Lanoxin)?
- A. It decreases edema.
- B. It decreases cardiac output.
- C. It increases heart size.
- D. It increases venous pressure.
Correct Answer: A
Rationale: Digoxin has a rapid onset and is useful for increasing cardiac output, decreasing venous pressure, and, as a result, decreasing edema. Cardiac output is increased by digoxin. Heart size and venous pressure are decreased by digoxin.