A nurse is preparing to administer haloperidol 5 mg IM to a client. The amount available is haloperidol 20 mg/mL. How many mL should the nurse administer?

(Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

To calculate the dose of midazolam to administer, we need to convert the client's weight from pounds to kilograms, and then multiply by the dose per kilogram.

Given: Client weight = 220 lb

Dose of midazolam = 0.2 mg/kg

First, let's convert the client's weight from pounds to kilograms:

1 lb ≈ 0.453592 kg (approximately 0.45 kg, for simplicity)

Client weight in kilograms ≈ 220 lb × 0.45 kg/lb ≈ 99 kg

Now, let's calculate the dose of midazolam:

Dose = Weight (in kg) × Dose per kg Dose ≈ 99 kg × 0.2 mg/kg = 19.8 mg

Rounded to the nearest whole number, the nurse should administer approximately 20 mg of midazolam.

A. Prepare for gastric lavage due to an extremely elevated lithium level.

This option is incorrect. A lithium level of 1.0 mEq/L is within the therapeutic range for treating bipolar disorder or other mood disorders. Gastric lavage (stomach pumping) is not indicated for this level of lithium concentration.

B. Check the client's medication record to assess whether the client has been refusing her lithium.

This option is not directly relevant to the client's current lithium level of 1.0 mEq/L. While it's important to monitor medication adherence, the client's lithium level is within the therapeutic range, so there is no immediate concern about refusal or non-adherence.

C. Administer the morning dose of lithium.

This option is correct. With a lithium level of 1.0 mEq/L, which falls within the therapeutic range for treating bipolar disorder, the nurse should proceed with administering the morning dose of lithium as prescribed. It's important to maintain therapeutic lithium levels to effectively manage the client's condition.

D. Hold the medication and assess for early manifestations of toxicity.

This option is incorrect. With a lithium level of 1.0 mEq/L, there is no indication to hold the medication or suspect early manifestations of toxicity. Monitoring for lithium toxicity is important, but it's not warranted in this scenario where the lithium level is within the therapeutic range.