Which of the following is an adverse effect of intravenous lorazepam?

Intravenous lorazepam, a benzodiazepine, can result in various adverse effects due to its action on the central nervous system. The correct answer encompasses all the listed effects: amnesia, drowsiness, and blurred vision.

Amnesia is a known effect of lorazepam as it can impair memory formation, particularly short-term memory, and this can be more pronounced when the drug is administered intravenously and at higher doses. Drowsiness is another common side effect of lorazepam, as it has sedative properties that can induce sleepiness and sedation, making it useful in clinical settings for anxiety relief and premedication for procedures. Lastly, blurred vision may occur due to the muscle relaxant effects of the drug, which can influence the muscles controlling eye movement.

Recognizing that all these side effects are linked to the pharmacological actions of lorazepam helps in understanding the potential risks involved in its use, especially when administered intravenously, prompting careful monitoring and patient education.