What is the action of timolol maleate (Timoptic), a beta-adrenergic blocking agent?
Increases the outflow of aqueous humor.
Increases the production of aqueous humor.
Draws aqueous humor from the eye into the circulatory network.
Decreases the production of aqueous humor.
The Correct Answer is D
Timolol maleate (Timoptic) is a beta-adrenergic blocking agent that reduces elevated intraocular pressure by decreasing the production of aqueous humour in the ciliary body of the eye.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A. “Monitor for ringing in your ears.”
Choice A rationale:
Erythromycin can cause ototoxicity, which may present as tinnitus (ringing in the ears). Monitoring for this side effect is important to prevent potential hearing damage.
Choice B rationale:
Yellowing of the skin is not a common side effect of erythromycin. This symptom is more associated with liver issues or jaundice, which is not typically linked to erythromycin use.
Choice C rationale:
Erythromycin is more likely to cause gastrointestinal side effects such as diarrhea rather than constipation. Increasing fiber intake is not necessary to prevent constipation when taking this medication.
Choice D rationale:
Grapefruit juice can interfere with the metabolism of many medications, including erythromycin, potentially leading to increased drug levels and risk of side effects. It is generally advised to avoid grapefruit juice while taking erythromycin.
Correct Answer is C
Explanation
A.Cephalexin oral suspension should typically be stored in the refrigerator to maintain its stability and effectiveness. Storing it at room temperature could affect its potency.
B.Shaking the oral suspension is necessary to ensure the medication is evenly distributed before each dose, providing the client with the correct dosage of active ingredients. Failure to shake the suspension can result in uneven dosing.
C.Cephalexin is a cephalosporin antibiotic, and there is a potential for cross-sensitivity in clients who are allergic to penicillin. Up to 10% of people with a penicillin allergy may also be allergic to cephalosporins. Checking for a penicillin allergy helps prevent an adverse reaction, making it a critical safety measure before administering cephalexin.
D.While some antibiotics can cause gastrointestinal side effects, constipation is not a common adverse effect associated with cephalexin. The nurse should instead monitor for other side effects like diarrhea, which is more typical with antibiotics and can indicate a mild side effect or a more severe condition, such as Clostridioides difficile infection.
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