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 A
Explanation
Contact information for a community mental health center. A community mental health center can provide ongoing outpatient care and support services for a client who has schizophrenia after discharge from an inpatient unit. A community mental health center can also help the client access other resources such as medication, housing, and vocational training.
Choice B is wrong because a list of primary prevention activities is not relevant for a client who already has schizophrenia. Primary prevention aims to prevent the occurrence of a disease or disorder in the first place.
Choice C is wrong because contact information for enrollment in a 12-step program is not appropriate for a client who has schizophrenia unless they also have a substance use disorder. A 12-step program is a self-help group that follows a set of principles to achieve and maintain sobriety.
Choice D is wrong because a referral for respite care services is not necessary for a client who has schizophrenia unless they also have a caregiver who needs temporary relief from their caregiving duties. Respite care services provide short-term care for clients who are dependent on others for their daily needs.
Correct Answer is B
Explanation
Obturator.

An obturator is a device that is inserted into the tracheostomy tube to guide it through the stoma and prevent tissue damage. It should be removed after the tube is inserted and kept near the bedside in case of accidental decannulation.
Choice A is wrong because povidone-iodine is an antiseptic solution that is not routinely used for tracheostomy care. It can cause skin irritation and damage to the mucous membranes.
Choice C is wrong because an irrigation set is not needed for a tracheostomy tube.
Irrigation can introduce bacteria and increase the risk of infection. It can also cause coughing and bleeding.
Choice D is wrong because hemostats are not used for a tracheostomy tube.
Hemostats are surgical instruments that are used to clamp blood vessels or tissues. They have no role in tracheostomy care.
Some other supplies that the nurse should place in the room are a trach tube the same size as the current tube and one size smaller, a portable suction machine with battery backup, and tubing that connects to the suction machine. Other supplies may include saline solution, syringes, gauze squares, gloves, a trachea tube brush, a waterproof drape, non-woven sponges, pipe cleaners, cotton tipped applicators, a T-drain sponge, twill tape, a trach holder, a speaking valve, a stoma cover, and a nebulizer.
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