A case of 35 weeks pregnancy with poly-hydramnios and marked respiratory distress is managed by?

AIIMS Bhatinda NO - 2019

Obstetrics & Gynecology

Hard

Appeared in: AIIMS Bhatinda NO - 2019

Explanation

In cases of severe polyhydramnios with significant maternal symptoms like respiratory distress, the primary treatment is to reduce the amniotic fluid volume.
Therapeutic amniocentesis, also called amnioreduction, is the procedure of choice to safely and controllably drain excess amniotic fluid.
This procedure directly relieves the pressure on the mother's diaphragm and other organs, improving her respiratory function and reducing the risk of preterm labor.
The goal is to restore the amniotic fluid volume to a more normal level, typically by slowly withdrawing 1000 to 2000 mL of fluid.

Option A: IV furosemide is a diuretic that acts on the mother's kidneys. It does not directly or effectively remove fluid from the amniotic sac and is not a primary treatment for polyhydramnios.
Option B: Administering a saline infusion would increase the mother's intravascular volume, which is contraindicated and would not alleviate the mechanical pressure from the enlarged uterus.
Option D: Artificial rupture of membranes (ARM) is extremely dangerous in severe polyhydramnios. The sudden, uncontrolled gush of fluid can cause the umbilical cord to be swept down and out of the cervix (umbilical cord prolapse) or cause the placenta to detach prematurely (placental abruption), both of which are obstetrical emergencies.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Management of severe polyhydramnios in pregnancy as background academic context rather than a clinical decision trigger.
Nurses have a critical role in managing a patient undergoing amnioreduction. This includes continuous monitoring of maternal vital signs (especially respiratory rate and oxygen saturation) and fetal heart rate before, during, and after the procedure.
Patient education is a key nursing function. The nurse must explain the procedure, its purpose (to help breathing), and potential risks such as preterm labor, infection, or premature rupture of membranes.
Post-procedure, the nurse monitors for signs of complications, including uterine contractions, vaginal bleeding or fluid leakage, and changes in fetal movement.

How to Approach the Question

First, identify the key elements of the clinical scenario: a late-preterm pregnancy (35 weeks), a known complication (polyhydramnios), and a severe, life-threatening symptom (marked respiratory distress).
Recognize that 'marked respiratory distress' signals an urgent situation requiring immediate intervention.
Analyze the pathophysiology: The respiratory distress is mechanical, caused by the excessively large uterus pressing on the diaphragm. Therefore, the solution must involve reducing the size of the uterus.
Evaluate the options based on this goal. Ask: 'Which option safely and effectively reduces the volume of amniotic fluid?'
Amniocentesis (amnioreduction) is a controlled procedure to drain fluid. This directly addresses the problem.
Consider the other options: Furosemide is a diuretic and won't work on amniotic fluid. Saline infusion is harmful. ARM is an uncontrolled and highly risky procedure in this context.

Concept Tested & Keywords

Concept Tested: Management of severe polyhydramnios in pregnancy.
Stem keywords: 35 weeks pregnancy, poly-hydramnios, marked respiratory distress
Lead-in keywords: managed by
Clinical cues: The presence of 'marked respiratory distress' is a critical cue, indicating that the condition is severe and requires immediate intervention to alleviate mechanical pressure on the diaphragm.
Negative lead-in flag: false

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E6 Obstetrics Williams p. 51-70

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1049-1051