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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Administer analgesia. The child is likely experiencing pain and discomfort after the tonsillectomy, which can cause frequent swallowing. Analgesia can help relieve the pain and reduce the risk of bleeding.
Choice A is wrong because checking the back of the throat with a pen light can cause trauma and bleeding to the surgical site. The nurse should avoid using any instruments or objects in the mouth of the child after a tonsillectomy.
Choice B is wrong because obtaining the child’s vital signs in 15 min is not a priority action. The nurse should monitor the child’s vital signs more frequently, especially for signs of bleeding such as increased pulse and decreased blood pressure.
Choice D is wrong because offering the child a drink of water can cause irritation and bleeding to the throat. The nurse should avoid giving the child any fluids or foods by mouth until the gag reflex returns and the child is fully awake. The nurse should also avoid giving the child any fluids or foods that are acidic, carbonated, hot, or spicy, as they can cause pain and bleeding.
Correct Answer is D
Explanation
Bleach.
According to the CDC, bleach is an effective disinfectant for environmental surfaces contaminated with blood or body fluids from a person with AIDS or other bloodborne pathogens. Bleach can kill HIV and hepatitis viruses when used in a 1:10 dilution with water.
Choice A is wrong because isopropyl alcohol is not recommended for disinfecting environmental surfaces. It can evaporate quickly and may not have enough contact time to kill the pathogens.
Choice B is wrong because chlorhexidine is an antiseptic, not a disinfectant. It is used for skin cleansing or wound irrigation, but it is not effective against spores or non-enveloped viruses.
Choice C is wrong because hydrogen peroxide is a low-level disinfectant that can be inactivated by organic matter.
It is not suitable for disinfecting surfaces contaminated with blood or body fluids.
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