**Question:** True about antenatal doppler analysis is all except

A. Doppler analysis is only performed in cases of suspected fetal compromise.
B. Only umbilical artery doppler is performed in antenatal evaluation.
C. The procedure is highly invasive and carries significant risk for the mother.
D. The test is only useful in determining fetal sex.

**Correct Answer:** D. The test is only useful in determining fetal sex.

**Core Concept:** Antenatal Doppler analysis is a non-invasive ultrasound technique used to assess fetal well-being by evaluating blood flow in various vessels. It aids in early detection of potential complications and helps guide clinical management decisions.

**Why the Correct Answer is Right:** Doppler analysis is used to assess the fetal circulation and evaluate the resistance index (RI), pulsatility index (PI), and systolic-diastolic ratio (SDR) of different fetal vessels, including the umbilical artery, ductus venosus, and uterine arteries. These indices provide valuable information about fetal well-being, including assessment of placental perfusion, organ perfusion, and detection of potential chromosomal disorders.

**Why Each Wrong Option is Incorrect:**

A. Doppler analysis is performed to evaluate fetal well-being and detect complications such as oligohydramnios, growth restriction, or placental insufficiency.
B. In antenatal evaluation, evaluation of blood flow in various vessels, including the umbilical artery, ductus venosus, and uterine arteries, is crucial.
C. Doppler analysis is a safe procedure with minimal risk to the mother and fetus.
D. Determining fetal sex is not the primary purpose of antenatal Doppler analysis; rather, it focuses on assessing fetal well-being and detecting complications.

**Clinical Pearl:** Antenatal Doppler analysis is a valuable tool in obstetric practice to assess fetal well-being and identify potential complications, guiding clinical management decisions. It is a safe procedure with minimal risk to both the mother and fetus. The correct interpretation of Doppler indices allows early detection of fetal compromise, enabling timely intervention and improving neonatal outcomes.