A nurse is preparing to administer vitamin K 1mg IM to a newborn.
Available is vitamin K injection 1 mg/0.5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth.
Use a leading zero if it applies.
Do not use a trailing zero.).
0.5
1.0
2.0
0.6
The Correct Answer is A
Choice A rationale:
To calculate the amount of vitamin K (1 mg) to administer, you need to use the given concentration (1 mg/0.5 mL). This means that 1 mg is present in every 0.5 mL of the solution. To determine how many milliliters (mL) you should administer to get 1 mg, you can set up a proportion: 1 mg / X mL = 1 mg / 0.5 mL Cross-multiply and solve for X: X = (1 mg * 0.5 mL) / 1 mg X = 0.5 mL Therefore, the nurse should administer 0.5 mL, which can be rounded to 2.0 mL to the nearest tenth of a milliliter. Now, let's move on to the next question.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
This test will screen for ABO incompatibility. This statement is inaccurate. Maternal serum alpha-fetoprotein (MSAFP) determination is not used to screen for ABO incompatibility. ABO incompatibility is a different concern that involves the mother's and baby's blood types, and it is not assessed through MSAFP testing.
Choice B rationale:
This test will screen for fetal maturity. MSAFP determination does not assess fetal maturity. The purpose of this test is to screen for specific congenital abnormalities, such as neural tube defects and chromosomal abnormalities, not to determine fetal maturity.
Choice C rationale:
This test will screen for neural tube defects. This is the correct choice. Maternal serum alpha-fetoprotein (MSAFP) determination is primarily used to screen for neural tube defects in the developing fetus. It measures the level of alpha-fetoprotein in the mother's blood, and elevated levels can indicate a higher risk of neural tube defects.
Choice D rationale:
This test will screen for gestational diabetes. MSAFP testing is not used to screen for gestational diabetes. Gestational diabetes is typically screened for through glucose tolerance tests or other specific tests designed to diagnose diabetes during pregnancy.
Correct Answer is A
Explanation
Choice A rationale:
The purpose of administering vitamin K to a newborn is to prevent bleeding. Vitamin K plays a crucial role in blood clotting. Newborns often have lower levels of vitamin K, which can make them more susceptible to bleeding disorders, such as hemorrhagic disease of the newborn (HDN). HDN can lead to serious bleeding complications, including intracranial hemorrhage, which can be life-threatening.
Choice B rationale:
Hyperbilirubinemia is not the primary purpose of administering vitamin K. While vitamin K can indirectly help in preventing jaundice (hyperbilirubinemia) by reducing the risk of bleeding that may lead to hemolysis, it is not the primary aim of vitamin K administration.
Choice C rationale:
Potassium deficiency (hypokalemia) is not a primary concern related to vitamin K administration. Vitamin K is specifically administered to prevent bleeding disorders and not to address potassium levels.
Choice D rationale:
Infection is not related to the administration of vitamin K. Vitamin K is not used to prevent or treat infections in newborns; its primary role is in blood clotting.
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