A patient with a history of anxiety disorder is prescribed lorazepam at a dosage of 1 mg to be administered every 8 hours as needed. If the patient has already received 2 doses today, what is the maximum additional dosage they can safely receive within the same day?
3 mg.
2 mg.
0 mg.
The Correct Answer is C
Choice A reason: A 3 mg additional dose would exceed the prescribed limit. The prescription allows for 1 mg every 8 hours as needed, up to a maximum of 3 mg in a 24-hour period (one dose every 8 hours). Since the patient has already received 2 mg (two 1 mg doses), an additional 3 mg would result in a total of 5 mg, which is unsafe and exceeds the prescribed daily limit.
Choice B reason: A 2 mg additional dose would also exceed the prescribed limit. With 2 mg already taken, an additional 2 mg would total 4 mg in a day, surpassing the maximum of 3 mg allowed by the prescription (1 mg every 8 hours, up to three doses).
Choice C reason: The patient has already received 2 mg (two 1 mg doses) today. The prescription allows for 1 mg every 8 hours as needed, which permits a maximum of 3 mg in 24 hours. With two doses already administered, only one additional 1 mg dose is safe, but none of the options list 1 mg. Therefore, 0 mg is the correct answer, as no additional dose beyond the remaining 1 mg is permissible among the given choices.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason:The total daily dose of quetiapine is 800 mg, divided into two doses, meaning each dose is 400 mg (800 mg ÷ 2). With 200 mg tablets, each dose requires 400 mg ÷ 200 mg = 2 tablets. This is the correct calculation for the number of tablets per dose.
Choice B reason:Four tablets per dose would result in 800 mg per dose (4 × 200 mg), totaling 1600 mg daily, which doubles the prescribed daily dose of 800 mg. This is incorrect and could lead to an overdose.
Choice C reason:Five tablets per dose would result in 1000 mg per dose (5 × 200 mg), totaling 2000 mg daily, far exceeding the prescribed 800 mg daily dose. This is incorrect and unsafe.
Choice D reason:Three tablets per dose would result in 600 mg per dose (3 × 200 mg), totaling 1200 mg daily, which exceeds the prescribed 800 mg daily dose. This is incorrect and not aligned with the prescription.
Correct Answer is A
Explanation
Choice A reason:Regression involves reverting to an earlier developmental stage under stress, such as seeking dependency or avoiding responsibilities like chores and appointments. The client’s desire to be cared for reflects this defense mechanism.
Choice B reason:Introjection involves internalizing others’ beliefs or values, such as adopting someone else’s attitudes. The client’s behavior does not involve adopting external values but rather a retreat to dependency.
Choice C reason:Repression involves unconsciously blocking distressing thoughts or memories. The client’s behavior is not about forgetting stress but actively expressing a need for care, making this incorrect.
Choice D reason:Dissociation involves detaching from reality or one’s sense of self, often in response to trauma. The client’s behavior reflects dependency, not a disconnection from reality, so this is incorrect.
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