A nurse is caring for a client at a follow-up visit who has been taking lithium therapy for bipolar disorder.
Which of the following findings should indicate to the nurse that the client is experiencing lithium toxicity?
Hypoglycemia.
Excess salivation.
Urinary retention.
Dysrhythmia.
The Correct Answer is D
Dysrhythmia is an abnormal heart rhythm that can be a sign of severe lithium toxicity.
Lithium toxicity can occur when a person takes too much lithium, a mood- stabilizing medication used to treat bipolar disorder and major depressive disorder.
Choice A is wrong because hypoglycemia is not a symptom of lithium toxicity. Hypoglycemia is low blood sugar that can cause symptoms such as shakiness, sweating, hunger, and confusion.
Choice B is wrong because excess salivation is not a symptom of lithium toxicity. Excess salivation can be caused by various factors, such as infections, medications, or nerve damage.
Choice C is wrong because urinary retention is not a symptom of lithium toxicity. Urinary retention is the inability to empty the bladder completely, which can cause pain, discomfort, and infection. Lithium toxicity can actually cause increased urine output, not decreased.
Normal ranges for blood lithium levels are 0.6 to 1.2 mEq/L for maintenance therapy and 0.8 to 1.5 mEq/L for acute therapy. Levels above 1.5 mEq/L can cause mild to moderate toxicity, and levels above 2.0 mEq/L can cause severe toxicity. Levels above 3.0 mEq/L are considered a medical emergency.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Verapamil is a calcium channel blocker that can lower blood pressure and cause dizziness or fainting, especially when standing up from a sitting or lying position. Changing positions slowly can help prevent these symptoms.
Choice A is wrong because palpitations are not an expected side effect of verapamil, but rather a sign of a possible overdose or a serious heart problem that requires medical attention.
Choice C is wrong because verapamil should be taken with food or milk to avoid stomach upset and increase absorption.
Choice D is wrong because verapamil does not cause weight loss, but rather weight gain as a possible side effect.
Increasing calorie intake is not necessary and may worsen other health conditions such as diabetes or high cholesterol.
Correct Answer is B
Explanation
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.
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