A nurse is caring for a newborn. How many blood vessels should the nurse expect to observe in the newborn's umbilical cord?
Two arteries and two veins.
One artery and one vein.
Two arteries and one vein.
Two veins and one artery.
The Correct Answer is C
Choice A rationale:
The umbilical cord typically contains two arteries and one vein. Arteries carry oxygen-depleted blood and waste products from the fetus to the placenta for removal, while the vein carries oxygenated blood and nutrients from the placenta to the fetus. This arrangement is essential for maintaining proper fetal circulation during pregnancy.
Choice B rationale:
This choice is incorrect because the umbilical cord usually contains two arteries and one vein, not just one artery and one vein. Having only one artery could indicate a potential vascular abnormality or congenital issue that may require further investigation or medical attention.
Choice C rationale:
This is the correct answer. The umbilical cord usually contains two arteries and one vein. The presence of two arteries allows for the efficient removal of waste products and carbon dioxide from the fetus, while the single vein delivers essential nutrients and oxygen to support the baby's growth and development.
Choice D rationale:
This choice is incorrect as it states two veins and one artery, which is not the typical configuration of blood vessels in the umbilical cord. Having two veins and one artery would disrupt fetal circulation and hinder proper nutrient and waste exchange between the fetus and the placenta.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
The nurse should not advise the client to take deep, cleansing breaths before and after each contraction because it can interfere with the natural urge to push and may not be effective in helping with the labor process. When a client feels the urge to push, it is essential to work with their body's natural instincts.
Choice B rationale:
Instructing the client to hold their breath and push while counting to ten is not recommended. This Valsalva manoeuvre can cause a sudden increase in intra-abdominal pressure, which may reduce blood flow to the heart and brain and may be harmful to both the client and the baby. It's crucial to promote safe pushing techniques during labor.
Choice C rationale:
The instruction to push continuously throughout the entire contraction is also not ideal. Pushing continuously can lead to exhaustion and decrease the effectiveness of each push. It's essential to guide the client on when and how to push effectively to prevent unnecessary fatigue.
Choice D rationale:
The correct instruction is to let the client know when to push according to their contractions. The urge to push is a natural reflex that signifies the baby's descent into the birth canal. The nurse should encourage the client to listen to their body and push when they feel the urge during the contractions. This approach optimizes the client's efforts and conserves their energy for delivery.
Correct Answer is ["A","D","E"]
Explanation
Dysuria - Dysuria refers to painful or difficult urination. In a client with a urinary tract infection (UTI), this symptom is commonly present. The rationale behind this finding is that the infection irritates the urinary tract, causing discomfort and pain during urination. The client may experience a burning sensation or pressure while passing urine.
Choice D rationale
Hematuria - Hematuria refers to the presence of blood in the urine. In the case of a UTI, inflammation of the urinary tract can lead to tiny blood vessels rupturing, resulting in blood in the urine. This can cause the urine to appear pink, red, or brownish.
Choice E rationale:
Urinary frequency - Urinary frequency is another common symptom of a UTI. The infection can irritate the bladder lining, leading to an increased urge to urinate even when the bladder is not full. The client may feel the need to urinate frequently throughout the day and night.
Choice B rationale
Dependent edema - Dependent edema is not typically associated with a urinary tract infection. Edema is the accumulation of fluid in tissues, often causing swelling in the lower extremities due to gravity (dependent). This symptom is more commonly related to issues such as heart, kidney, or liver problems.
Choice C rationale
Polyuria - Polyuria refers to excessive urination, usually producing abnormally large volumes of urine. While frequent urination is a symptom of a UTI, polyuria, in this context, is not accurate. UTIs tend to cause frequent but smaller volumes of urine due to the irritation and inflammation of the bladder.
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