A nurse in labor and delivery is caring for a client. Following delivery of the placenta, the nurse examines the umbilical cord. Which of the following vessels should the nurse expect to observe in the umbilical cord?
Two arteries and one vein
Two veins and one artery
One artery and one vein
Two arteries and two veins
The Correct Answer is A
The correct answer is A. Two arteries and one vein.
A. Two arteries and one vein is the typical composition of the umbilical cord vessels. The umbilical arteries carry deoxygenated blood and waste products away from the fetus, while the umbilical vein carries oxygenated blood and nutrients to the fetus.
B. Two veins and one artery is not the usual configuration of the umbilical cord vessels. The presence of two veins is atypical.
C. One artery and one vein is an abnormal finding and may be associated with certain congenital anomalies or fetal abnormalities. This configuration is not the norm.
D. Two arteries and two veins is not a standard or physiological composition of the umbilical cord. The typical configuration is two arteries and one vein.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is B. Just above the symphysis pubis.
A. Just above the umbilicus: At the end of the first trimester, the uterus is still within the pelvic cavity, and fetal heart tones are typically not detectable above the umbilicus at this stage.
B. Just above the symphysis pubis: This is the correct placement for assessing fetal heart tones during the first trimester. The fetal heart is usually located low in the pelvis during early pregnancy, making it most easily heard just above the pubic bone.
C. The right lower quadrant: Fetal heart tones are typically assessed in the midline of the abdomen, and focusing on the lower quadrants may not be the optimal location, especially in the first trimester.
D. The left lower quadrant: Similar to the right lower quadrant, focusing on the lower quadrants may not be the most appropriate location for assessing fetal heart tones during the first trimester.
Correct Answer is C
Explanation
Choice A Reason:
Drinking the glucose solution 2 hours prior to the test is not standard for a 1-hour GTT. Instead, the glucose solution is usually consumed within a short timeframe, such as 5 minutes, and the blood is drawn 1 hour afterward.
Choice B Reason:
Limiting carbohydrate intake for 3 days prior to the test is not a requirement for a 1-hour GTT. However, it may be advised for a longer fasting period or a different type of glucose tolerance test.
Choice C Reason:
C. “A blood glucose of 130 to 140 is considered a positive screening result.”
In the 1-hour glucose tolerance test during pregnancy, a blood glucose level of135 mg/dL or higheris considered a positive screening result. If this threshold is met, further testing (such as the 3-hour glucose tolerance test) is recommended to confirm or rule out gestational diabetes.
.
Choice D Reason:
Fasting for 12 hours prior to the test is inappropriate. For a 1-hour GTT, the client is not typically required to fast.
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