ATI RN
Proctored Pharmacology ATI
1. A client with active tuberculosis asks why he must take four different medications. Which of the following responses should the nurse make?
- A. Taking four medications decreases the risk of a severe allergic reaction.
- B. Taking four medications reduces the chance that the bacteria will become resistant.
- C. Taking four medications reduces the risk of adverse reactions.
- D. Taking four medications decreases the chance of having a positive tuberculin skin test.
Correct answer: B
Rationale: When treating tuberculosis, using a combination of multiple medications is crucial to reduce the risk of bacterial resistance. The use of four medications helps to target the bacteria from different angles, making it harder for them to develop resistance to the treatment. This approach is essential to ensure the effectiveness of the treatment regimen and to prevent the spread of drug-resistant strains of tuberculosis. Choices A, C, and D are incorrect because the primary reason for using multiple medications in tuberculosis treatment is to prevent the development of bacterial resistance, not to decrease the risk of allergic reactions, adverse reactions, or affecting the tuberculin skin test results.
2. A client has a new prescription for Atenolol. Which of the following instructions should the nurse provide?
- A. Take this medication with grapefruit juice.
- B. Monitor your blood pressure and heart rate regularly.
- C. You may experience a rapid heart rate.
- D. Increase your intake of potassium-rich foods.
Correct answer: B
Rationale: The correct answer is B: 'Monitor your blood pressure and heart rate regularly.' Atenolol is a beta-blocker used to treat hypertension and other cardiovascular conditions. Patients should monitor their blood pressure and heart rate regularly to assess the medication's effectiveness and check for adverse effects like bradycardia or hypotension. Choice A is incorrect because Atenolol should not be taken with grapefruit juice, which can interfere with its absorption. Choice C is incorrect because Atenolol typically causes a decrease in heart rate, not a rapid heart rate. Choice D is incorrect because there is no specific need to increase potassium-rich foods while taking Atenolol.
3. A client is prescribed Propranolol for a dysrhythmia. Which of the following actions should the nurse plan to take?
- A. Hold Propranolol if the client's apical pulse is greater than 100/min.
- B. Administer Propranolol to decrease the client's blood pressure.
- C. Assist the client with sitting up or standing after taking this medication.
- D. Monitor the client for hypokalemia due to the risk of Propranolol toxicity.
Correct answer: C
Rationale: The correct action the nurse should plan to take when administering Propranolol is to assist the client when sitting up or standing after taking the medication. Propranolol can lead to orthostatic hypotension, causing dizziness upon sudden position changes. It is essential to help the client with position changes to prevent falls or injury. Holding Propranolol if the client's apical pulse is greater than 100/min (Choice A) is incorrect because Propranolol is often used to manage dysrhythmias and slowing down the heart rate. Administering Propranolol to decrease the client's blood pressure (Choice B) is not the primary indication for using this medication. Monitoring the client for hypokalemia due to the risk of Propranolol toxicity (Choice D) is not a direct effect of Propranolol; rather, it is more related to other medications like diuretics.
4. A healthcare professional is caring for a hospitalized client who has an activated partial thromboplastin time (aPTT) greater than 1.5 times the expected reference range. Which of the following blood products should the healthcare professional prepare to transfuse?
- A. Whole blood
- B. Platelets
- C. Fresh frozen plasma
- D. Packed red blood cells
Correct answer: C
Rationale: Fresh frozen plasma is the correct choice for a client with an elevated aPTT because it contains essential coagulation factors that can help correct coagulopathy and prevent bleeding. It is rich in clotting factors like fibrinogen, factors V and VIII, which are crucial in maintaining proper blood clotting function. Whole blood (Choice A) is not typically used to correct coagulopathy and is more suitable for situations requiring both volume and oxygen-carrying capacity. Platelets (Choice B) are indicated for thrombocytopenia, not for correcting coagulation factors. Packed red blood cells (Choice D) are used to increase oxygen-carrying capacity in cases of anemia, not for correcting coagulopathy.
5. A healthcare provider is preparing to administer dextrose 5% in water (D5W) 750 mL IV to infuse over 6 hr. How many mL/hr should the IV pump be set to deliver?
- A. 125 mL/hr
- B. 100 mL/hr
- C. 150 mL/hr
- D. 200 mL/hr
Correct answer: A
Rationale: To calculate the flow rate, divide the total volume by the total time: (750 mL / 6 hr) = 125 mL/hr. Therefore, the IV pump should be set to deliver 125 mL/hr to infuse dextrose 5% in water (D5W) over 6 hours. Choice B, 100 mL/hr, is incorrect as it does not match the correct calculation. Choice C, 150 mL/hr, is incorrect as it is higher than the calculated flow rate. Choice D, 200 mL/hr, is incorrect as it is also higher than the calculated flow rate.
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