A nurse is reviewing a client's laboratory report. The client's ABG levels are pH 7.5, PaCO2 32 mm Hg, and HCO3 24 mEq/L. The nurse should determine that the client has which of the following acid-base imbalances?
Respiratory alkalosis
Metabolic acidosis
Respiratory acidosis
Metabolic alkalosis
The Correct Answer is A
Choice A reason: This is the correct imbalance, because respiratory alkalosis is a condition that occurs when the blood pH is high, the PaCO2 is low, and the HCO3 is normal or low. Respiratory alkalosis is caused by hyperventilation, which can result from anxiety, fever, pain, or mechanical ventilation.
Choice B reason: This is an incorrect imbalance, because metabolic acidosis is a condition that occurs when the blood pH is low, the PaCO2 is normal or low, and the HCO3 is low. Metabolic acidosis is caused by the accumulation of acids in the blood, which can result from diabetic ketoacidosis, renal failure, or lactic acidosis.
Choice C reason: This is an incorrect imbalance, because respiratory acidosis is a condition that occurs when the blood pH is low, the PaCO2 is high, and the HCO3 is normal or high. Respiratory acidosis is caused by hypoventilation, which can result from airway obstruction, chest injury, or narcotic overdose.
Choice D reason: This is an incorrect imbalance, because metabolic alkalosis is a condition that occurs when the blood pH is high, the PaCO2 is normal or high, and the HCO3 is high. Metabolic alkalosis is caused by the loss of acids from the blood, which can result from vomiting, gastric suction, or diuretic therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: This is an incorrect instruction, because it is not necessary to take this medication for the rest of your life to prevent recurrence. Isoniazid is usually taken for 6 to 9 months, or as prescribed by the provider, to treat active TB or latent TB infection.
Choice B reason: This is the correct instruction, because your provider will monitor your liver function while you are taking this medication. Isoniazid can cause hepatotoxicity, which is a serious side effect that can damage the liver and cause jaundice, nausea, vomiting, or abdominal pain.
Choice C reason: This is an incorrect instruction, because you should avoid alcohol intake while you are taking this medication. Alcohol can increase the risk of hepatotoxicity and interfere with the metabolism of isoniazid.
Choice D reason: This is an incorrect instruction, because it is not recommended to take this medication with a meal to increase absorption. Isoniazid should be taken on an empty stomach, at least 1 hour before or 2 hours after a meal, to ensure optimal absorption and effectiveness.
Correct Answer is D
Explanation
Choice A reason: This is a false statement, because adults do not receive a natural immunity to herpes zoster from casual exposure to children who have had chickenpox. Herpes zoster is caused by the reactivation of the varicella-zoster virus, which remains dormant in the nerve cells after a primary infection with chickenpox.
Choice B reason: This is a false statement, because herpes zoster is not prevented by the MMR vaccine, which protects against measles, mumps, and rubella. Herpes zoster is prevented by the varicella vaccine, which is given separately from the MMR vaccine.
Choice C reason: This is a false statement, because a client who has herpes zoster is contagious if blisters are present on the skin. The blisters contain the varicella-zoster virus, which can be transmitted through direct contact or airborne droplets.
Choice D reason: This is the correct statement, because herpes zoster is contagious to people who have never had chickenpox. People who have never had chickenpox can contract the varicella-zoster virus from a person who has herpes zoster and develop chickenpox as a primary infection.
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