How it Works
Try Naxlex NCLEX-RN (Free-Trial)

Surgical closure of the ductus arteriosus would result in which of the following?

A.

Prevent the return of oxygenated blood to the lungs

B.

Decrease the edema in the legs and feet

C.

Stop the loss of unoxygenated blood to the systemic circulation

D.

Increase the oxygenation of blood

Answer and Explanation

The Correct Answer is D

A. Prevent the return of oxygenated blood to the lungs is incorrect because closing the ductus arteriosus does not block pulmonary venous return. Blood still returns from the lungs to the left atrium and ventricle normally.

B. Decrease the edema in the legs and feet is incorrect because peripheral edema is not directly related to a patent ductus arteriosus (PDA). Edema is more associated with congestive heart failure or systemic venous congestion, which may be secondary but is not the immediate effect of surgical closure.

C. Stop the loss of unoxygenated blood to the systemic circulation is partially correct in theory, as a PDA can allow blood to shunt from the aorta to the pulmonary artery, but the key concern is left-to-right shunting of oxygenated blood back to the lungs, not unoxygenated blood going systemically.

D. Increase the oxygenation of blood is correct because surgical closure of a PDA eliminates the abnormal shunt that allows oxygenated blood from the aorta to flow back into the pulmonary circulation. This reduces pulmonary overcirculation and ensures that oxygenated blood remains in the systemic circulation, improving overall tissue oxygenation.


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is {"A":{"answers":"A"},"B":{"answers":"B"},"C":{"answers":"A"},"D":{"answers":"B"}}

Explanation

  • Providing choices when possible: Supports atraumatic care by giving the child a sense of control, which can reduce fear and anxiety during procedures.
  • Threatening loss of privileges: Does not support atraumatic care; using threats increases fear and stress, which is counterproductive to minimizing trauma.
  • Using a calm, reassuring tone: Supports atraumatic care; helps the child feel safe and understood during a stressful procedure.
  • Asking the parent to leave: Does not support atraumatic care; parental presence often reduces anxiety for the child and improves coping.

Correct Answer is C

Explanation

A. Abdominal pain with scant red vaginal bleeding is incorrect because placenta previa is typically painless. Painful bleeding is more characteristic of placental abruption, not placenta previa.

B. Increasing abdominal pain with a rigid abdomen is incorrect because this description aligns with placental abruption, where the placenta prematurely separates from the uterine wall, causing pain, uterine rigidity, and bleeding.

C. Painless red vaginal bleeding is correct because placenta previa occurs when the placenta partially or completely covers the cervical os, leading to bright red, painless vaginal bleeding, especially in the third trimester. The uterus is usually soft and non-tender. This classic presentation is a key diagnostic clue.

D. Intermittent abdominal pain following passage of bloody mucus is incorrect because this pattern is more consistent with bloody show before labor rather than placenta previa. Placenta previa bleeding is usually bright red and spontaneous, not related to cervical dilation in labor.

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Register