ATI RN
ATI Pharmacology
1. A client has a new prescription for Timolol. How should the nurse instruct the client to insert eye drops?
- A. Press your finger on the inside corner of your eye for 1 minute after application.
- B. Apply the eye drops directly to the cornea.
- C. Drop the prescribed amount of medication into the center of the conjunctival sac.
- D. Wipe your eyes gently with a tissue immediately after application.
Correct answer: C
Rationale: When administering eye drops, it is essential to instruct the client to drop the prescribed amount of medication into the center of the conjunctival sac. This technique helps ensure proper distribution of the medication and reduces the risk of potential adverse effects. Pressing on the inside corner of the eye is done to prevent systemic absorption, applying drops directly to the cornea can cause irritation, and wiping the eyes after application can lead to decreased effectiveness of the medication.
2. Which of the following drugs is associated with extreme photosensitivity as a reaction?
- A. Digitalis
- B. Niacin
- C. Tetracycline
- D. Fluoroquinolones
Correct answer: C
Rationale: Tetracycline is known to cause extreme photosensitivity reactions, making individuals more sensitive to sunlight and increasing the risk of severe sunburn. It is essential for patients taking tetracycline to protect themselves from excessive sun exposure to prevent adverse reactions.
3. A patient is being discharged with a new prescription for Hydrochlorothiazide. Which of the following instructions should the nurse include?
- A. Take the medication before bedtime.
- B. Monitor for increased blood pressure.
- C. Take the medication with food.
- D. Monitor for leg cramps.
Correct answer: D
Rationale: The correct instruction the nurse should include is to monitor for leg cramps. Leg cramps can be a sign of hypokalemia, which is a potential adverse effect of Hydrochlorothiazide. By monitoring for leg cramps, the patient can detect signs of low potassium levels and report them to the healthcare provider promptly. This proactive approach helps prevent complications associated with hypokalemia. The other options are incorrect because taking Hydrochlorothiazide before bedtime or with food is not specific to the medication's adverse effects. Monitoring for increased blood pressure is not typically a common adverse effect of this medication.
4. A healthcare professional is preparing to administer IV Dantrolene to a client who has developed Malignant Hyperthermia during surgery. Which of the following actions should the healthcare professional take?
- A. Dilute the medication with sterile water and administer it rapidly.
- B. Store the medication in a refrigerator until use.
- C. Administer the medication through a large-bore IV catheter.
- D. Administer the medication via an infusion pump over 60 minutes.
Correct answer: C
Rationale: Dantrolene should be administered through a large-bore IV catheter because it is highly irritating to tissues and can cause vein irritation or thrombophlebitis if administered through a small vein. Using a large-bore IV catheter helps to minimize the risk of tissue damage and ensures proper and safe administration of the medication in emergency situations like Malignant Hyperthermia. Choices A, B, and D are incorrect because diluting the medication with sterile water and administering it rapidly can lead to tissue damage, storing the medication in a refrigerator is not necessary, and administering the medication via an infusion pump over 60 minutes is not appropriate in emergency situations like Malignant Hyperthermia where rapid administration is crucial.
5. A healthcare professional is caring for a client who is receiving heparin therapy. Which of the following laboratory tests should the healthcare professional monitor to evaluate the therapeutic effect of heparin?
- A. PT/INR
- B. Platelet count
- C. aPTT
- D. WBC count
Correct answer: C
Rationale: The correct test to monitor the therapeutic effect of heparin is the activated partial thromboplastin time (aPTT). Heparin's action is to prolong the clotting time, and aPTT reflects this effect. Monitoring aPTT helps ensure that the client is within the therapeutic range to prevent clot formation while minimizing the risk of bleeding complications. PT/INR is used to monitor warfarin therapy, platelet count assesses for potential thrombocytopenia, and WBC count evaluates for signs of infection or inflammation, not the therapeutic effect of heparin.
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