A client has just begun therapy with lithium (Eskalith). The nurse notices the serum level of lithium for this client is 1.3 mEq/L What is the normal range of lithium?
3.0-4.5 mEq/L
0.6-1.5 mEq/L
0.1-0.6 mEq/L
1.5-3.0 mEq/L
The Correct Answer is B
A. The normal therapeutic range for lithium is typically considered to be between 0.6-1.5 mEq/L. Levels above or below this range may indicate the need for dosage adjustment or potential toxicity.
B. The normal therapeutic range for lithium is typically considered to be between 0.6-1.5 mEq/L. Levels above or below this range may indicate the need for dosage adjustment or potential toxicity.
C. The normal therapeutic range for lithium is typically considered to be between 0.6-1.5 mEq/L. Levels above or below this range may indicate the need for dosage adjustment or potential toxicity.
D. The normal therapeutic range for lithium is typically considered to be between 0.6-1.5 mEq/L. Levels above or below this range may indicate the need for dosage adjustment or potential toxicity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Lithium toxicity can occur if the patient becomes dehydrated while taking lithium, as dehydration can lead to higher concentrations of lithium in the blood.
B. Increased effectiveness is not a consequence of dehydration while taking lithium.
C. Dehydration would not typically lead to the need to increase the lithium dosage but rather to the risk of toxicity.
D. Dehydration can lead to higher, not lower, serum lithium levels, increasing the risk of toxicity.
Correct Answer is C
Explanation
A. Orange juice does not interact with simvastatin and does not need to be avoided.
B. Coenzyme Q10 (CoQ10) supplements are sometimes taken by patients on statins to help alleviate the side effects like muscle pain, but they do not need to be avoided.
C. Grapefruit juice should be avoided while taking simvastatin because it contains compounds that interfere with the enzymes that metabolize statins, potentially leading to increased drug levels and greater risk of side effects such as muscle damage.
D. Not all fruit juices interact with simvastatin; the specific concern is with grapefruit juice.
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