As relates to the structure and function of the placenta, the nurse should be aware that.

The placenta is able to keep out most potentially harmful substances.

As one of its early functions, the placenta acts as an endocrine gland.

As the placenta widens, it gradually thins to allow easier passage of air and nutrients.

Optimal blood circulation is achieved through the placenta during pregnancy.

Answer and Explanation

The Correct Answer is B

Choice A rationale
Although the placenta acts as a partial barrier, it does not keep out all harmful substances, allowing some to cross and affect fetal development.
Choice B rationale
One of the placenta's early functions is producing hormones like human chorionic gonadotropin (hCG), estrogen, and progesterone, making it act as an endocrine gland.
Choice C rationale
The placenta does not thin out; it remains robust and increases in thickness to support the growing fetus and facilitate nutrient and gas exchange.
Choice D rationale
While optimal blood circulation through the placenta is crucial, this statement lacks detail on the specific structural and functional aspects of the placenta.

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 D

Explanation

Choice A rationale
The maternal-fetal exchange of oxygen and waste products is affected by uterine contractions, as these compress the placental blood vessels, temporarily reducing blood flow.
Choice B rationale
Blood pressure variations during labor can influence perfusion but do not increase maternal-fetal exchange as uterine contractions primarily cause transient vascular compression.
Choice C rationale
Maternal-fetal exchange continues during contractions except when the uterine pressure is high enough to occlude placental blood flow, temporarily halting the exchange.
Choice D rationale
Uterine contractions compress the spiral arteries, reducing blood flow through the placenta, thereby diminishing maternal-fetal exchange of oxygen and waste products during contractions.

A. Metal detectors at airport security checkpoints can harm the fetus if the woman passes through them a number of times. B. Women should avoid seat belts and shoulder restraints in the car because they press on the fetus. C. While working or traveling in a car or on a plane, women should arrange to walk around at least every hour or so. D. Women should sit for as long as possible and cross their legs at the knees from time to time for exercise.

Correct Answer is C

Explanation

Choice A rationale
Metal detectors at airport security checkpoints are considered safe and do not pose any risk of harm to the fetus.
Choice B rationale
Seat belts and shoulder restraints should always be used as they provide essential protection for both the mother and the fetus during travel.
Choice C rationale
Pregnant women are advised to walk around every hour during long periods of sitting to improve circulation and prevent blood clots, enhancing fetal health.
Choice D rationale
Prolonged sitting and crossing legs can impede circulation and increase the risk of venous thromboembolism, making it essential to avoid such practices.

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

As relates to the structure and function of the placenta, the nurse should be aware that.

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The maternity nurse understands that as the uterus contracts during labor, maternal-fetal exchange of oxygen and waste products:

Correct Answer is D

Explanation

When discussing work and travel during pregnancy with a pregnant patient, nurses should instruct them that.

Correct Answer is C

Explanation

The nurse places a Toco (tocodynamometer) on a client admitted in early labor. The nurse explains to the client that this device provides an accurate assessment of which of the following:

The client has been having contractions every 5 minutes for 7 hours. Which factor would the nurse use to determine if this is true labor?

The nurse teaches a pregnant woman about the presumptive, probable, and positive signs of pregnancy. The woman demonstrates understanding of the nurse’s instructions if she states that a positive sign of pregnancy is:

After the nurse completes nutritional counseling for a pregnant woman, she asks the client to repeat the instructions to assess the client’s understanding. Which statement indicates that the client understands the role of protein in her pregnancy?

A patient is admitted to the Labor & Delivery unit at 39 weeks. She is 5/60/-2. After several hours she is at 5/70/-2. What can be given to help augment her labor?

The nurse is discussing a patient’s vaccination history at her 32-week gestation appointment. The nurse knows that her teaching has been effective when the patient states:

This procedure allows us to identify fetal lie, presentation, and engagement: