Early deceleration denotes:
Correct Answer: Head compression
Description: Ans. is a, i.e. Head compressionRef. Dutta Obs. 9/e, p 569"Deceleration is defined as a decrease in fetal heart rate below the base line by 15 beats per minute or more." Three basic patterns of deceleration are observed, each of which has a diagnostic significance:FHR patternFeatureSeen inEarly decelerationDeceleration coincidences with a contraction Uniform onset, i.e. gradual takes > 30 sec and recovery Magnitude rarely >40 bpmHead compressionNot associated with fetal hypoxiaLate decelerationBegins at or after the contraction peak and touches baseline only after contraction Uniform onset, i.e. gradual takes> 30 secs and recoveryMay be of low magnitude 10-20 bpmUteroplacental insufficiency, Fetal hypoxia. It is an ominous findingVariable decelerationVariable relationship to contraction Ragged waveform. Abrupt in onset < 30 sec Variable magnitudeUmbilical cord compression M/C type of deceleration
Category:
Gynaecology & Obstetrics
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now