ATI LPN
LPN Pharmacology Practice Test
1. When preparing to administer a controlled substance, which of the following actions is required?
- A. Check the client's identification bracelet.
- B. Check the client's allergy status.
- C. Have a second nurse witness disposal of the medication.
- D. Document the administration in the client's medical record.
Correct answer: C
Rationale: When administering controlled substances, it is crucial to have a second nurse witness the disposal of the medication. This measure ensures proper handling, reduces the risk of diversion, and promotes compliance with regulations regarding controlled substances. Having a second nurse witness the disposal is a safeguard to maintain accountability and prevent any potential misuse or errors during the disposal process. Checking the client's identification bracelet and allergy status are important steps in medication administration but are not specifically required for controlled substances. Documenting the administration in the client's medical record is essential but does not specifically relate to the disposal of controlled substances.
2. A client is receiving heparin therapy. Which of the following laboratory tests should be monitored to evaluate the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Complete blood count (CBC)
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the most appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works on the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps assess its anticoagulant effect. Therapeutic levels of aPTT for clients on heparin therapy are typically 1.5 to 2.5 times the control value. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, which acts on the extrinsic pathway of the coagulation cascade. Complete blood count (CBC) is not specific for monitoring the effectiveness of heparin therapy.
3. The healthcare professional is assessing a client who presents with jaundice. Which assessment finding is most important for the healthcare professional to follow up on?
- A. Urine specific gravity of 1.03
- B. Frothy, tea-colored urine
- C. Clay-colored stools
- D. Elevated serum amylase and lipase levels
Correct answer: D
Rationale: Elevated serum amylase and lipase levels are indicative of pancreatitis, a serious condition that can manifest with jaundice. Timely follow-up is crucial to manage pancreatitis and its complications effectively in a jaundiced client. Choices A, B, and C are less critical in this scenario. Urine specific gravity within normal range, frothy tea-colored urine, and clay-colored stools can be associated with various conditions but are not directly indicative of pancreatitis, which is the most concerning condition associated with jaundice.
4. A client is diagnosed with thrombophlebitis. The nurse should tell the client that which prescription is indicated?
- A. Bed rest, with bathroom privileges only
- B. Bed rest, keeping the affected extremity flat
- C. Bed rest, with elevation of the affected extremity
- D. Bed rest, with the affected extremity in a dependent position
Correct answer: C
Rationale: The correct answer is C: Bed rest, with elevation of the affected extremity. Elevating the affected extremity is crucial in managing thrombophlebitis as it helps reduce swelling and promotes venous return. By elevating the affected extremity, the gravitational force assists in venous blood flow back to the heart, thereby reducing the risk of complications associated with thrombophlebitis. Choices A, B, and D are incorrect because they do not address the need for elevation, which is specifically beneficial in the management of thrombophlebitis.
5. A client receives discharge teaching for a new prescription of lithium. Which instruction should be included?
- A. Take the medication with food.
- B. Increase your intake of sodium.
- C. Monitor for signs of hypercalcemia.
- D. Avoid consuming dairy products.
Correct answer: B
Rationale: The correct instruction to include when a client receives discharge teaching for a new prescription of lithium is to increase their intake of sodium. Lithium can lead to decreased sodium levels, putting the individual at risk of developing hyponatremia. By increasing sodium intake, the client can counteract this risk, maintain a proper sodium balance, and prevent complications. Choices A, C, and D are incorrect because taking lithium with food, monitoring for signs of hypercalcemia, and avoiding dairy products are not directly related to managing the side effects or risks associated with lithium therapy.
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