A nurse is planning care for a client who has a detached retina and is preoperative for a surgical repair. The nurse should prepare to administer which of the following medications?
Timolol
Pilocarpine
Latanoprost
Phenylephrine
The Correct Answer is D
Phenylephrine is an alpha-adrenergic agent. It binds onto adrenergic receptors producing a sympathetic effect that dilates the pupil. Dilation of the pupils allows for visualization of inner structures of the eye and easier access during retinal surgery.
A. Timolol is a beta-blocker eye drop used to reduce intraocular pressure in conditions like glaucoma.
B. Pilocarpine is a miotic agent (constricts the pupil) used to treat conditions like glaucoma.
C. Latanoprost is a prostaglandin analog used to lower intraocular pressure in glaucoma.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
- Administration of subcutaneous heparin follows the following steps
- Wipe the chosen area with alcohol and avoid rubbing
- Remove the cap from needle
- Gently pinch a fold of skin
- Insert the needle at 45 to 90 degrees
- Push down the drug into the tissue
- Draw the needle out slowly at the same angle
- Apply a cotton ball light for 1-2 minutes
- Monitor for bleeding
Correct Answer is B
Explanation
Extended release potassium chloride tablets should be taken whole to avoid rapid release of the potassium which may lead to hyperkalemia and GI irritation.
A. Diuretic therapy increases urine output through reduction of water reabsorption. Potassium supplementation does not interfere with its action.
C. Taking potassium chloride with food or after meals is recommended to reduce the risk of gastrointestinal irritation or discomfort.
D. Antacids interfere with the absorption of potassium chloride leading to inadequate supplementation.
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