A nurse is caring for a newborn who has early-onset VKDB due to maternal use of anticoagulants during pregnancy.
Which of the following interventions should the nurse anticipate for this newborn?
Administer fresh frozen plasma
Administer packed red blood cells
Administer intravenous immunoglobulin
Administer recombinant erythropoietin
The Correct Answer is A
The correct answer is choice A. Administer fresh frozen plasma. This is because fresh frozen plasma contains clotting factors that can help stop the bleeding caused by vitamin K deficiency. Vitamin K is needed for the synthesis of clotting factors in the liver, but newborns have low levels of vitamin K and may develop vitamin K deficiency bleeding (VKDB) if they do not receive prophylaxis at birth. VKDB can manifest as bleeding in various sites, such as the skin, mucous membranes, umbilicus, gastrointestinal tract, or central nervous system.
Choice B is wrong because packed red blood cells do not contain clotting factors and will not correct the underlying deficiency of vitamin K.
Choice C is wrong because intravenous immunoglobulin is used to treat immune-mediated thrombocytopenia, not vitamin K deficiency.
Choice D is wrong because recombinant erythropoietin is used to stimulate red blood cell production in anemia, not to treat bleeding disorders.
Early-onset VKDB occurs within 24 hours of birth and is associated with maternal use of drugs that interfere with vitamin K metabolism, such as anticoagulants, anticonvulsants, or antituberculosis drugs .
These drugs induce the enzymes that break down vitamin K in the fetal liver
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is choice C. Nasal flaring and grunting are signs of respiratory distress in a newborn and should alert the nurse to a potential problem.
The nurse should monitor the newborn’s respiratory rate, oxygen saturation, and chest movements, and notify the provider if the symptoms persist or worsen.
Choice A is wrong because molding of the head is a normal finding in a newborn who was delivered vaginally.
It is caused by the pressure of the birth canal on the skull bones and usually resolves within a few days.
Choice B is wrong because acrocyanosis of hands and feet is a normal finding in a newborn during the first 24 hours of life.
It is caused by poor peripheral circulation and does not indicate hypoxia or cyanosis.
Choice D is wrong because vernix caseosa on skin folds is a normal finding in a newborn.
It is a white, cheesy substance that protects the skin from amniotic fluid and helps with thermoregulation.
It usually disappears within a few days.
Correct Answer is A
Explanation
The correct answer is choice A. Glycogen.Preterm newborns have limited stores of glycogen, which is a substance made from glucose that is stored in the liver and muscle cells to be used later for energy.When blood glucose levels are low, the hormone glucagon signals the cells to convert glycogen back into glucose and release it into the bloodstream.However, preterm newborns have a reduced ability to produce glucagon and to use gluconeogenesis, which is the process of making new glucose from other sources.Therefore, they are at risk of hypoglycemia, which is a condition where blood glucose levels are too low to support normal brain function.
Choice B is wrong because glucose is the sugar that travels through the blood to fuel the cells, not a substance that is stored for later use.
Choice C is wrong because insulin is a hormone that helps cells absorb glucose from the blood, not a substance that is stored for later use.
Choice D is wrong because glucagon is a hormone that triggers the release of glucose from the liver and muscle cells, not a substance that is stored for later use.
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