A nurse is caring for a client who is pregnant and Rh-negative. The nurse should plan to monitor which of the following maternal laboratory test results to determine maternal-fetal blood incompatibility?
Homocysteine.
Indirect Coombs.
Erythropoietin.
aPTT.
The Correct Answer is B
The indirect Coombs test is used to detect antibodies against foreign red blood cells in the maternal serum. This test can help identify maternal-fetal blood incompatibility, which can cause hemolytic disease of the newborn.
Choice A is wrong because homocysteine is a type of amino acid and is not related to blood compatibility.
Choice C is incorrect because erythropoietin is a hormone that regulates red blood cell production and is not a specific test for detecting maternal-fetal blood incompatibility.
Choice D is not the correct answer as aPTT (activated partial thromboplastin time) is a test used to evaluate blood clotting factors and is not directly related to monitoring maternal-fetal blood incompatibility.
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Related Questions
Correct Answer is B
Explanation
It occurs because nicotine stimulates the release of dopamine, a neurotransmitter that regulates mood and pleasure. When nicotine intake is stopped, dopamine levels drop and cause anxiety and irritability.
Choice A is wrong because tachycardia, or rapid heart rate, is not a symptom of nicotine withdrawal. In fact, smoking can increase blood pressure and heart rate, so quitting smoking may lower them.
Choice C is wrong because weight loss is not a symptom of nicotine withdrawal. On the contrary, weight gain is more likely to occur after quitting smoking, because nicotine suppresses appetite and increases metabolism.
Choice D is wrong because vomiting is not a symptom of nicotine withdrawal. Vomiting may be a side effect of some nicotine replacement therapies, such as patches or gum, but it is not caused by the lack of nicotine itself.
Correct Answer is A
Explanation
“I will turn all pot handles toward the back of the stove.” This indicates that the guardian understands how to prevent the toddler from pulling a pot off the stove and getting burned.
Choice B is wrong because a child’s car seat should be rear-facing until the child is at least 2 years old or reaches the maximum height and weight for the seat.
Choice C is wrong because the temperature of the water heater should be set to no higher than 120 degrees to prevent scalding injuries.
Choice D is wrong because drop-side cribs are banned in the United States due to the risk of entrapment and suffocation.
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