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 A
Explanation
This is outside of the expected reference range for a 2-week-old infant, which is 30 to 60 breaths per minute. A respiratory rate higher than 60 breaths per minute can indicate respiratory distress or infection.
Choice B is wrong because BP 64/42 mm Hg is within the normal range for a 2-week-old infant, which is 65 to 85/45 to 55 mm Hg.
Choice C is wrong because Axillary temperature 36.6° C (97.9° F) is within the normal range for a 2-week-old infant, which is 36.5 to 37.5° C (97.7 to 99.5° F).
Choice D is wrong because Apical heart rate 124/min is within the normal range for a 2-week-old infant, which is 110 to 160 beats per minute.
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.
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