Fetal Monitoring machine is used to?

Appeared in: HPSSC Staff Nurse - 2021

Explanation

A fetal monitoring machine, also known as a cardiotocograph (CTG), simultaneously records two key parameters: the fetal heart rate (FHR) and the mother's uterine contractions.
This is achieved using two separate transducers placed on the mother's abdomen: an ultrasound transducer for FHR and a tocodynamometer for contractions.
The combined tracing allows healthcare providers to assess fetal well-being in relation to the stress of uterine contractions, especially during labor.
The correct option encompasses both of these essential functions, making it the most complete answer.

Option A: This is only one of the two primary functions. The machine also records uterine contractions, making this answer incomplete.
Option B: The machine does not measure fetal respiratory rate. Fetuses in the womb do not breathe air; they receive oxygen from the placenta.
Option C: This is the second primary function, but it omits the monitoring of the fetal heartbeat, making the answer incomplete.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Function of Electronic Fetal Monitoring (Cardiotocography) as background academic context rather than a clinical decision trigger.
Continuous electronic fetal monitoring (EFM) is crucial for assessing fetal well-being and detecting early signs of fetal hypoxia during labor, especially in high-risk pregnancies.
Nurses are responsible for the correct placement of the transducers, ensuring a clear tracing, and interpreting the data (baseline FHR, variability, accelerations, decelerations) to identify non-reassuring patterns that require intervention.
What if? If external monitoring of contractions is inadequate (e.g., in a patient with obesity), and the amniotic membranes have ruptured, an internal Intrauterine Pressure Catheter (IUPC) may be inserted to get a more accurate measurement of contraction strength, frequency, and duration.

How to Approach the Question

First, identify the key term in the question: 'Fetal Monitoring machine'.
Recall the purpose of this machine in obstetrics. It is also called a Cardiotocograph (CTG). The name itself gives a clue: 'Cardio' refers to the heart, and 'Toco' refers to uterine contractions.
Evaluate each option based on this knowledge.
Option A (heartbeat) and Option C (contractions) are both functions of the machine.
Eliminate Option B (respiratory rate) as fetuses do not breathe air in utero; they get oxygen via the placenta.
Since both A and C are correct functions, look for an option that combines them. Option D does this, making it the most comprehensive and correct answer.

Concept Tested & Keywords

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E6 Midwifery Obstetrics and Gynecology Nursing Sandeep Kaur pp. 45-53, 44-52

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