ATI LPN
LPN Pharmacology Practice Test
1. A healthcare professional is preparing to administer a unit of packed red blood cells to a client. Which of the following actions should the healthcare professional take?
- A. Prime the blood tubing with normal saline.
- B. Verify the client’s identity using two identifiers.
- C. Infuse the blood rapidly over 30 minutes.
- D. Obtain the client’s vital signs every 4 hours during the transfusion.
Correct answer: B
Rationale: Verifying the client’s identity using two identifiers is a critical patient safety measure to ensure the correct patient receives the blood transfusion. This process involves checking the patient's identity using at least two unique identifiers, such as name, date of birth, or medical record number, to prevent administration errors. Priming the blood tubing with normal saline is necessary to ensure there are no air bubbles in the tubing, but it is not the immediate action required before administering the blood. Infusing packed red blood cells over 30 minutes is generally too rapid and can lead to adverse reactions; a slower rate is recommended for safe administration. Obtaining vital signs every 4 hours during the transfusion is not frequent enough to monitor the client adequately for potential transfusion reactions or complications; vital signs should be monitored more frequently, especially during the initial phase of the transfusion.
2. A nurse is caring for a client who has a terminal illness and is approaching death. Which of the following findings should the nurse identify as an indication of impending death?
- A. Hypertension.
- B. Tachycardia.
- C. Cold extremities.
- D. Diaphoresis.
Correct answer: C
Rationale: Cold extremities are a critical sign of impending death as they indicate decreased circulation, leading to poor perfusion to the extremities. This phenomenon occurs as the body redirects blood flow to vital organs, preparing for the end of life. Hypertension and tachycardia are less likely to be seen in the terminal phase and are usually associated with other conditions like shock or sepsis. Diaphoresis, or excessive sweating, may occur in various situations but is not a specific indicator of impending death in this context.
3. It has been generally accepted that the percentage of total daily calories supplied by fats should be no more than:
- A. 10% to 15%.
- B. 10% to 35%.
- C. 20% to 35%.
- D. 40% to 55%.
Correct answer: C
Rationale: The recommended fat intake is between 20% to 35% of total daily calories. This range is considered optimal for maintaining a healthy diet. Choice A (10% to 15%) is too low and might not provide enough essential fats for the body. Choice B (10% to 35%) includes an upper limit that exceeds the generally accepted range. Choice D (40% to 55%) suggests a fat intake that is higher than what is recommended, which could lead to health issues if consumed regularly.
4. A nurse is providing teaching to a group of new parents about medications. The nurse should include that aspirin is contraindicated for children who have a viral infection due to the risk of developing which of the following adverse effects?
- A. Reye's syndrome
- B. Visual disturbances
- C. Diabetes mellitus
- D. Wilms' tumor
Correct answer: A
Rationale: The correct answer is A: Reye's syndrome. Aspirin use in children with viral infections has been associated with Reye's syndrome, a serious condition that causes swelling in the liver and brain. Visual disturbances (choice B) are not typically associated with aspirin use in children with viral infections. Diabetes mellitus (choice C) and Wilms' tumor (choice D) are not adverse effects of aspirin use in this context.
5. Prior to a dipyridamole thallium scan, what substance should the LPN/LVN ensure the client has not consumed?
- A. Caffeine
- B. Fatty meal
- C. Excess sugar
- D. Milk products
Correct answer: A
Rationale: Caffeine should be avoided before a dipyridamole thallium scan as it can interfere with the test results. Caffeine is a stimulant that can affect the heart rate and may lead to inaccurate findings during the scan. Fatty meals, excess sugar, and milk products do not specifically interfere with the dipyridamole thallium scan procedure. Therefore, it is essential for the LPN/LVN to check and ensure that the client has not consumed caffeine prior to the procedure to obtain accurate diagnostic results.
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