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A patient has been taking lithium for 1 year, and the most recent lithium level is 0.9 mEq/L. Which statement about the laboratory result is correct?

A.

The lithium level is too low

B.

The lithium level is therapeutic

C.

Lithium is not usually monitored with blood levels

D.

The lithium level is too high

Answer and Explanation

The Correct Answer is B

A.    A lithium level of 0.9 mEq/L falls within the therapeutic range for lithium, so it is not too low.

B.    A lithium level of 0.9 mEq/L is within the therapeutic range for lithium maintenance therapy, which typically ranges from 0.6 to 1.2 mEq/L. Therefore, it is considered therapeutic.
C.    Lithium is commonly monitored with blood levels to ensure therapeutic efficacy and to prevent toxicity.
D.    A lithium level of 0.9 mEq/L is not too high; it is within the therapeutic range.
 


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Related Questions

Correct Answer is ["0.5"]

Explanation

Given:

Dose required = 35 mg

Concentration of medication = 75 mg/mL Formula:

Volume (mL) = Dose required (mg) / Concentration of medication (mg/mL) Calculation:

Volume (mL) = 35 mg / 75 mg/mL Result:

Volume (mL) = 0.4666667 mL Rounded to the nearest tenth:

Volume (mL) ≈ 0.5 mL

Correct Answer is D

Explanation

A. "I know that I cannot switch brands of this medication." - This statement indicates an understanding of the importance of consistency in medication use. Phenytoin requires consistent dosing and should not be switched between different brands without consulting a healthcare provider.
B. "I have made an appointment to see my dentist next week." - This statement shows awareness of the need for dental care while taking phenytoin. Phenytoin can cause gum hyperplasia, so regular dental check-ups are recommended.

C. "I will notify my doctor before taking any other medications." - This statement demonstrates understanding of the potential for drug interactions with phenytoin. Phenytoin can interact with many other medications, so it's crucial to consult a doctor before starting any new medications.
D. "I'll be glad when I can stop taking this medicine." - This statement indicates a

misunderstanding about the management of epilepsy. Phenytoin is typically a long-term medication used to control seizures, and it's not usually discontinued unless directed by a healthcare provider. Further teaching is needed to address this misconception.

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