which lab value is critical for a patient on heparin therapy
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Nursing Elites

ATI RN

ATI RN Exit Exam

1. Which lab value is critical for a patient on heparin therapy?

Correct answer: A

Rationale: The correct answer is to monitor aPTT. Activated Partial Thromboplastin Time (aPTT) is crucial for patients on heparin therapy as it helps determine the clotting ability of the blood. By monitoring aPTT, healthcare providers can adjust the dosage of heparin to maintain therapeutic levels and prevent bleeding complications. Monitoring INR is more commonly associated with warfarin therapy, not heparin. Monitoring platelet count is important for assessing the risk of bleeding or clotting disorders but is not specific to heparin therapy. Monitoring sodium levels is not directly related to assessing the effectiveness or safety of heparin therapy.

2. A healthcare professional is caring for a client who has a new prescription for metformin. Which of the following laboratory results should the healthcare professional review before administering the medication?

Correct answer: B

Rationale: Correct Answer: The healthcare professional should review serum creatinine levels before administering metformin to assess kidney function. Metformin is excreted by the kidneys, and checking serum creatinine helps prevent lactic acidosis, a potential side effect in individuals with impaired renal function. Choice A: Potassium levels are not directly related to the administration of metformin. While monitoring potassium levels is important for some medications, it is not the priority when initiating metformin. Choice C: Sodium levels are not typically assessed specifically before starting metformin. It is not a routine lab test required prior to metformin administration. Choice D: Hemoglobin A1C reflects long-term blood sugar control and is not a lab test that needs to be reviewed before initiating metformin. It is used to monitor diabetes management over time, not for immediate medication administration considerations.

3. A nurse is caring for a client who is receiving total parenteral nutrition (TPN). Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?

Correct answer: D

Rationale: The correct answer is D, Serum albumin. Serum albumin levels are a good indicator of the nutritional effectiveness of total parenteral nutrition (TPN). Monitoring serum albumin levels helps assess the client's overall protein status and nutritional adequacy. Choices A, B, and C are not direct indicators of the effectiveness of TPN therapy. Serum calcium levels may be affected by other factors, blood glucose monitoring is more relevant for clients with diabetes or those receiving insulin therapy, and serum protein is not as specific as serum albumin in evaluating TPN effectiveness.

4. When administering an incorrect dose of medication, which facts related to the incident report should the nurse document in the client's medical record?

Correct answer: A

Rationale: The nurse should document the time the medication was given in the client's medical record when administering an incorrect dose. This information is crucial for tracking the sequence of events leading to the error. Choice B, the client's response to the medication, is important for monitoring the client's condition post-administration but may not be directly linked to the incident report. Choice C, documenting the dose that was administered, is relevant but does not provide insights into the timing of events. Choice D, detailing the reason for the error, should be included in the incident report but may not need to be documented in the client's medical record.

5. A nurse is assessing a client who has a history of gastroesophageal reflux disease (GERD). Which of the following findings should the nurse identify as a complication of GERD?

Correct answer: A

Rationale: The correct answer is A: Hematemesis. Hematemesis (vomiting blood) is a sign of gastrointestinal bleeding and a serious complication of GERD. Melena (black, tarry stool) is also a sign of GI bleeding but is not as specific to GERD as hematemesis. Pallor may be present due to anemia from chronic blood loss, but it is not a direct complication of GERD. Steatorrhea is not typically associated with GERD; it is more indicative of malabsorption issues.

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