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AMCB CNM (CNM) Practice Tests & Test Prep by Exam Edge - Free Test


Our free AMCB Certified Nurse-Midwife (CNM) Practice Test was created by experienced educators who designed them to align with the official American Midwifery Certification Board content guidelines. They were built to accurately mirror the real exam's structure, coverage of topics, difficulty, and types of questions.

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AMCB Certified Nurse-Midwife - Free Test Sample Questions

When the fetus descends into the true pelvis, it is referred to as which of the following?
 





Correct Answer:
lightening


the correct term to describe when the fetus descends into the true pelvis is "lightening." this event typically occurs as the pregnancy nears its end, often a few weeks before labor begins. lightening is an important physiological change where the fetus moves downward into the pelvis, aligning itself for birth.

during lightening, the fetus's head (or the presenting part in breech presentations) settles into the pelvic inlet. this is significant because it indicates that the fetus is getting into position for the eventual passage through the birth canal. the true pelvis, comprising the bony structure including the pelvic inlet and outlet, plays a crucial role during childbirth, serving as the pathway that the fetus must navigate during delivery.

one of the practical implications of lightening for the expectant mother is a noticeable change in the shape of her abdomen, often referred to as "dropping." this can result in some physical relief as the pressure on the upper abdomen decreases, potentially easing respiratory discomfort and heartburn. however, it might also increase pressure on the bladder, leading to more frequent needs to urinate.

lightening is often seen as a precursor to labor but does not necessarily indicate that labor will begin immediately. it can occur several weeks before active labor starts, serving as a physiological signal that the body is preparing for the upcoming birthing process. in some cases, especially in first pregnancies, lightening might happen earlier compared to subsequent pregnancies.

in summary, lightening is the term used when the fetus moves into the true pelvis, signaling a shift towards birth readiness. this natural progression in late pregnancy helps position the fetus correctly for an easier and safer delivery, marking a significant milestone in the pregnancy journey.