AIIMS Rishikesh & Jodhpur NO - 2017
Obstetrics & Gynaecology
Medium

Look at the picture and identify the procedure usually done in a labor room?

Nonstress Test (NST) During Pregnancy

Appeared in: AIIMS Rishikesh & Jodhpur NO - 2017

Explanation

  • The image shows a Non-Stress Test (NST), which is a type of electronic fetal monitoring.
  • This procedure involves two transducers strapped to the mother's abdomen: one to monitor the fetal heart rate (FHR) and another to monitor uterine contractions.
  • The transducers are connected to a cardiotocograph machine that prints a tracing of the FHR and contractions.
  • NST is a non-invasive test used to check the baby's health by observing how the heart rate responds to the baby's movements.
  • A reactive (normal) test is a good indicator of fetal well-being.

Why Other Options Were Wrong

  • Option B: Colour Doppler is a specialized ultrasound that assesses blood flow. The equipment shown is for continuous monitoring of fetal heart rate and contractions, not primarily for blood flow analysis.
  • Option C: While an ultrasound transducer is used, USG (ultrasonography) is a general term for imaging. The specific procedure shown, involving continuous monitoring of heart rate and contractions, is called a Non-Stress Test (NST).
  • Option D: Amniocentesis is an invasive procedure that involves inserting a needle into the uterus to collect amniotic fluid for testing. The image clearly shows a non-invasive monitoring setup.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of antepartum fetal surveillance methods as background academic context rather than a clinical decision trigger.
  • NST is a cornerstone of antepartum fetal surveillance, especially in high-risk pregnancies (e.g., diabetes, hypertension, post-term pregnancy) to assess fetal well-being and prevent stillbirth.
  • Nurses are responsible for correctly placing the transducers, explaining the procedure to the patient, ensuring her comfort (often in a semi-Fowler's or left-lateral position to prevent supine hypotension), and interpreting the tracing.
  • A non-reactive NST (lacking sufficient accelerations) requires further evaluation, such as a biophysical profile (BPP) or contraction stress test (CST), as it may indicate fetal compromise.
How to Approach the Question
  • First, carefully examine the image provided. Identify the key objects: a pregnant woman, two circular devices (transducers) held by belts on her abdomen, and a machine with a paper printout.
  • Analyze the function of the equipment. The two separate transducers suggest two different parameters are being monitored simultaneously. The paper printout indicates continuous recording.
  • Consider the options in the context of a labor room or antepartum testing.
  • Evaluate 'NST'. This stands for Non-Stress Test, which uses two transducers to monitor fetal heart rate and uterine contractions. This perfectly matches the visual evidence.
  • Evaluate 'Colour Doppler' and 'USG'. These are types of ultrasound. While one transducer is for ultrasound, the entire setup for continuous monitoring is more specific than a general USG. Colour Doppler focuses on blood flow, which is not the primary purpose here.
  • Evaluate 'Amniocentesis'. This is an invasive procedure involving a needle, which is clearly not what is depicted in the image.
Concept Tested & Keywords
  • Concept Tested: Identification of antepartum fetal surveillance methods
  • Stem keywords: identify the procedure, labor room, pregnant woman, monitoring devices
  • Lead-in keywords: identify
  • Clinical cues: Image shows two transducers strapped to a pregnant woman's abdomen connected to a monitoring machine.

Question ID

Qc9c0h5_e9SXgUdQeR2o3o

Reference Book

E6 Midwifery Obstetrics and Gynecology Nursing Sandeep Kaur p. 44-52

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