A nurse is assessing a newborn who has late-onset VKDB due to exclusive breastfeeding and inadequate oral vitamin K supplementation.
Which of the following findings should indicate a possible intracranial hemorrhage to the nurse?
Bulging fontanelle
Sunken eyes
Mottled skin
Flaring nostrils
The Correct Answer is A
The correct answer is choice A. Bulging fontanelle.
A bulging fontanelle is a sign of increased intracranial pressure, which can be caused by intracranial hemorrhage.
Late-onset VKDB is a condition that occurs in infants who have low levels of vitamin K, which is essential for blood clotting. Most cases of late-onset VKDB present with intracranial hemorrhage.
Choice B. Sunken eyes is wrong because it is a sign of dehydration, not intracranial hemorrhage.
Choice C. Mottled skin is wrong because it is a sign of poor circulation or shock, not intracranial hemorrhage.
Choice D. Flaring nostrils is wrong because it is a sign of respiratory distress, not intracranial hemorrhage.
Normal ranges for vitamin K plasma concentrations are 0.2 to 3.2 ng/mL for adults and 0.15 to 1.5 ng/mL for infants.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is choice B. Washing the penis with soap and water daily can irritate the circumcision site and delay healing.
The parents should only use warm water to gently clean the area and pat it dry.
They should avoid using soap, alcohol, or peroxide on the wound.
Choice A is wrong because changing the diaper every 3 to 4 hours is recommended to prevent infection and keep the area clean and dry.
Choice C is wrong because applying petroleum jelly on the penis with each diaper change can protect the wound from sticking to the diaper and reduce friction.
Choice D is wrong because calling the doctor if they see any signs of infection, such as redness, swelling, pus, foul odor, or fever, is a correct action.
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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