Nokea
An adult is scheduled for a left cataract extraction. Homatropine and Cyclogyl eye drops are ordered. What is the expected action of these drops?
- A. Mydriasis
- B. Miotic effects
- C. Relaxation of eye muscles
- D. Prevention of infection
Correct Answer: A
Rationale: Homatropine and Cyclogyl are mydriatics, dilating the pupil to facilitate cataract surgery.
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An adult client is seen in the clinic, and sulfisoxazole (Gantrisin) is prescribed. Which information is most appropriate for the nurse to include in the teaching?
- A. Limit your fluid intake to four glasses a day.
- B. If it upsets your stomach, try taking it with an antacid.
- C. Avoid going out in the sun while taking this drug.
- D. Take the tablets with orange juice or milk.
Correct Answer: C
Rationale: Sulfisoxazole causes photosensitivity; avoiding sun exposure is critical to prevent skin reactions.
A newly admitted client has a diagnosis of depression. She complains of 'twitching muscles' and a 'racing heart', and states she stopped taking Zoloft a few days ago because it was not helping her depression. Instead, she began to take her partner's Parnate. The nurse should immediately assess for which of these adverse reactions?
- A. Pulmonary edema
- B. Atrial fibrillation
- C. Mental status changes
- D. Muscle weakness
Correct Answer: C
Rationale: Mental status changes. Use of serotonergic agents may result in Serotonin Syndrome with confusion, nausea, palpitations, increased muscle tone with twitching muscles, and agitation. Serotonin syndrome is most often reported in patients taking 2 or more medications that increase CNS serotonin levels by different mechanisms. The most common drug combinations associated with serotonin syndrome involve the MAOIs, SSRIs, and the tricyclic antidepressants.
Penicillin V potassium (Pen-Vee-K) 500 mg PO qid is ordered for an adult client. He reports that he took penicillin for the first time two months ago. What should the nurse do?
- A. Be sure that skin testing for a penicillin allergy has been done
- B. Observe for signs of an allergic response
- C. Withhold the penicillin
- D. Notify the physician
Correct Answer: B
Rationale: The client does not have a history of allergic response to penicillin, so there is no need to skin test or withhold the medication. However, allergic responses often occur after the first administration.
The 38-year-old client with chronic asthma is prescribed a leukotriene receptor antagonist. Which is the scientific rationale for administering this medication?
- A. This medication is used prophylactically to control asthma.
- B. This medication will cure the client's chronic asthma.
- C. It will stabilize mast cell activities and reduce asthma attacks.
- D. It will cause the bronchioles to dilate and increase the airway.
Correct Answer: A
Rationale: Leukotriene receptor antagonists (e.g., montelukast) are prophylactic, reducing inflammation to control asthma. They don’t cure, stabilize mast cells, or directly dilate bronchioles.
The client is experiencing supraventricular tachycardia (SVT). Which antidysrhythmic medication should the nurse prepare to administer?
- A. Atropine.
- B. Amiodarone.
- C. Adenosine.
- D. Dobutamine.
Correct Answer: C
Rationale: Adenosine is first-line for SVT, rapidly terminating the arrhythmia, per ACLS guidelines. Other drugs are used for different rhythms.