A nurse is explaining the musculoskeletal changes during pregnancy to a group of expectant mothers.

Which change alters the center of gravity and posture of the body?

Increased joint laxity.

Increased spinal curvature.

Increased muscle strain.

Decreased muscle strength.

Answer and Explanation

The Correct Answer is B

This change alters the center of gravity and posture of the body because the uterus expands and shifts higher as the fetus grows during pregnancy.

This causes an increased strain on the muscles and ligaments supporting the vertebral column and leads to lower back pain.

Choice A is wrong because increased joint laxity does not alter the center of gravity and posture of the body.

It is caused by hormonal changes that loosen the ligaments throughout the body, resulting in decreased stability of the joints.

Choice C is wrong because increased muscle strain does not alter the center of gravity and posture of the body.

It is a consequence of the shift in the center of gravity and the weight gain during pregnancy, which put more pressure on the back muscles.

Choice D is wrong because decreased muscle strength does not alter the center of gravity and posture of the body.

It is not a common musculoskeletal change during pregnancy, although some women may experience fatigue or weakness due to hormonal changes or anemia.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is A

Explanation

Progesterone is responsible for maintaining the corpus luteum and stimulating fetal growth.

Progesterone also prevents miscarriage by relaxing the uterus and maintaining the endometrium.

Choice B is wrong because estrogen is not responsible for maintaining the corpus luteum or stimulating fetal growth.

Estrogen helps develop the female sexual traits and supports the growth of the uterus and placenta.

Choice C is wrong because thyroid hormones are not responsible for maintaining the corpus luteum or stimulating fetal growth.

Thyroid hormones regulate the metabolism and energy levels of the mother and the fetus.

Choice D is wrong because prolactin is not responsible for maintaining the corpus luteum or stimulating fetal growth.

Prolactin stimulates milk production in the breasts after delivery.

A. Increased joint laxity. B. Increased weight gain. C. Increased muscle strain. D. Decreased muscle strength.

Correct Answer is A

Explanation

The correct answer is choice A. Increased joint laxity contributes to increased spinal curvature in pregnant women.

Joint laxity is caused by the hormone relaxin, which loosens the ligaments and joints of the pelvis and spine to prepare for childbirth.

This can result in increased lordosis (inward curvature) of the lumbar spine and increased kyphosis (outward curvature) of the thoracic spine.

Choice B is wrong because increased weight gain does not directly affect spinal curvature, but it can cause postural changes such as anterior pelvic tilt and forward trunk lean.

Choice C is wrong because increased muscle strain is a consequence, not a cause, of spinal curvature changes.

Muscle strain can occur due to the altered biomechanics and balance of the spine and pelvis during pregnancy.

Choice D is wrong because decreased muscle strength is also a consequence, not a cause, of spinal curvature changes.

Muscle strength can decrease due to reduced physical activity, hormonal changes, or pain during pregnancy.

Normal ranges for spinal curvature vary depending on age, sex, and measurement method, but generally they are:

Sacral inclination: 30-50 degrees

Lumbar curvature: 20-45 degrees

Thoracic curvature: 20-40 degrees

Cervical curvature: 20-35 degrees

View Question and Answer

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

A nurse is explaining the musculoskeletal changes during pregnancy to a group of expectant mothers. Which change alters the center of gravity and posture of the body?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is providing education to a pregnant client about the hormonal changes during pregnancy. Which hormone is responsible for maintaining the corpus luteum and stimulating fetal growth ?

Correct Answer is A

Explanation

A nurse is educating a pregnant client about the changes in her posture during pregnancy. Which factor contributes to increased spinal curvature?

Correct Answer is A

Explanation

A nurse is providing education to a pregnant client about the symptoms associated with musculoskeletal changes. Which symptom is commonly experienced due to increased muscle strain during pregnancy?

A nurse is caring for a patient who had an amniocentesis performed at 16 weeks gestation and reports cramping and vaginal bleeding 24 hours later. Which action should be taken first?

A nurse is educating a pregnant client about the renal changes during pregnancy. Which change is responsible for the increased urinary output?

Which factors would change during pregnancy if the hormone progesterone were withdrawn or reduced?

A nurse is caring for a pregnant client who is experiencing leg cramps. These cramps are primarily caused by:.

A nurse is calculating the partial pressure of oxygen (PaO2) in the arterial blood of a pregnant client who is in her second trimester. The nurse should use which of the following values as the normal range for PaO2 in pregnancy?

A nurse is educating a pregnant client about the endocrine changes during pregnancy. Which hormone is responsible for inhibiting ovulation and stimulating milk production?

A nurse is caring for a pregnant client who has hyperemesis gravidarum and is receiving IV fluids and antiemetics in an acute care facility. Which of the following outcomes indicates that treatment has been effective?

A nurse is explaining the musculoskeletal changes during pregnancy to a group of expectant mothers.

Which change alters the center of gravity and posture of the body?