NEET BIOLOGY

Detailed explanation-1: -The average fetal heart rate is between 110 and 160 beats per minute. It can vary by 5 to 25 beats per minute. The fetal heart rate may change as your baby responds to conditions in your uterus. An abnormal fetal heart rate may mean that your baby is not getting enough oxygen or that there are other problems.

Detailed explanation-2: -Fetal heart rate changes throughout pregnancy. It’s fastest at around 9 weeks gestation then gradually slows after the 13th week of pregnancy.

Detailed explanation-3: -The normal fetal heart rate is between 120 and 160 beats per minute. Typically, an abnormally fast heart rate is over 200 beats per minute.

Detailed explanation-4: -If the heart beats too fast, contractions are shallow and not enough blood is pumped with each heartbeat. As a result, the fetus can go into heart failure. The most common form of this condition is called supraventricular tachycardia (SVT), in which the heart rate can be faster than 200 beats per minute.

Detailed explanation-5: -Of these pregnancies, 244 were revealed to be girls, while 233 were revealed to be boys. Did heart rate help predict gender? The average heart rate for baby boys in the first trimester was 154.9 bpm (plus or minus 22.8 bpm) and for baby girls it was 151.7 bpm (plus or minus 22.7 bpm).