a nurse is caring for a client who is receiving heparin therapy the nurse should monitor which of the following laboratory values to evaluate the effe

ATI RN

ATI Pharmacology

1. A client is receiving heparin therapy. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?

A. PT
B. aPTT
C. INR
D. Platelet count

Correct answer: B

Rationale: The corrected answer is B: aPTT. The activated partial thromboplastin time (aPTT) is the laboratory value used to monitor the effectiveness of heparin therapy. The aPTT should be maintained at 1.5 to 2 times the normal level to ensure therapeutic anticoagulation. Monitoring aPTT helps healthcare providers adjust heparin doses to achieve the desired anticoagulant effects and prevent complications such as bleeding or clotting. Choice A, PT (prothrombin time), is used to monitor warfarin therapy, not heparin. Choice C, INR (international normalized ratio), is also used to monitor warfarin therapy. Choice D, platelet count, is important for assessing the risk of bleeding, but it does not directly monitor the effectiveness of heparin therapy.

2. In which of the following cases is Lansoprazole not used?

A. Gastritis
B. Peptic Ulcers
C. Zollinger-Ellison syndrome
D. Thalamus hypertrophy

Correct answer: D

Rationale: Lansoprazole is a proton pump inhibitor mainly used to treat conditions related to the stomach, such as gastritis, peptic ulcers, and Zollinger-Ellison syndrome. Thalamus hypertrophy is not a condition that Lansoprazole is indicated for; it is used for gastrointestinal issues and not neurological conditions.

3. A client with Angina Pectoris asks the nurse about the next step if one tablet does not relieve Anginal pain after waiting 5 minutes. Which of the following responses should the nurse make?

A. Take two more sublingual tablets simultaneously.
B. Call emergency services.
C. Take a sustained-release nitroglycerin capsule.
D. Wait another 5 minutes before taking a second sublingual tablet.

Correct answer: B

Rationale: In a situation where Anginal pain persists after taking one sublingual tablet and waiting 5 minutes, it is crucial to call emergency services (911) immediately. This could indicate a myocardial infarction (heart attack) rather than a typical Anginal attack. The client should not take two more sublingual tablets simultaneously without seeking immediate medical help as this could delay appropriate intervention if the pain is due to a heart attack. Taking a sustained-release nitroglycerin capsule is not recommended for immediate relief of acute Anginal pain as it works too slowly. Waiting another 5 minutes before taking a second sublingual tablet is not appropriate if the pain persists, as prompt action is essential in suspected heart-related issues.

4. What is the therapeutic classification of Furosemide?

A. Antidiuretics
B. Diuretics
C. Anticonvulsants
D. Antidotes

Correct answer: B

Rationale: Furosemide is classified therapeutically as a diuretic. Diuretics are medications used to promote diuresis, which helps the body get rid of excess salt and water. Furosemide is commonly prescribed to treat conditions such as fluid retention and swelling (edema) associated with congestive heart failure, liver disease, or kidney disorders. Choice A, Antidiuretics, is incorrect as Furosemide acts as a diuretic, promoting the production of urine. Choice C, Anticonvulsants, is also incorrect as Furosemide is not used to treat seizures. Choice D, Antidotes, is incorrect as Furosemide is not an antidote but rather a medication used to treat conditions related to fluid retention.

5. Before administering lithium to a client with bipolar disorder who has been taking the medication for 1 year, the nurse should check to see that which of the following tests has been completed?

A. Thyroid hormone assay
B. Liver function tests
C. Erythrocyte sedimentation rate
D. Brain natriuretic peptide

Correct answer: A

Rationale: The correct answer is to check the thyroid hormone assay. Long-term lithium use can result in thyroid dysfunction, making it crucial to monitor the client's thyroid function regularly to detect any abnormalities early and prevent potential complications. Liver function tests (choice B) are not specifically associated with lithium therapy. Erythrocyte sedimentation rate (choice C) is a nonspecific test for inflammation and not directly related to lithium therapy. Brain natriuretic peptide (choice D) is a test used to diagnose heart failure and is not relevant to monitoring lithium therapy.