ATI RN
ATI Proctored Pharmacology Test
1. A client with a prescription for Vasopressin to treat Diabetes Insipidus is being taught by a healthcare professional. Which of the following client statements indicates an understanding of the teaching?
- A. I will reduce my sodium intake.
- B. I should increase my water intake.
- C. I will notify my doctor if I develop chest pain.
- D. I should take this medication with food.
Correct answer: C
Rationale: The correct answer is C because Vasopressin can cause vasoconstriction, potentially leading to chest pain. It is crucial for the client to inform their healthcare provider immediately if they experience chest pain while on Vasopressin therapy to address any potential cardiovascular complications promptly. Choices A, B, and D are incorrect. While maintaining adequate hydration is essential with Vasopressin therapy due to its antidiuretic effect, increasing water intake is not the most critical aspect to monitor. Reducing sodium intake may be beneficial in some cases but is not directly related to the potential side effects of Vasopressin. Taking the medication with food is not a specific instruction for Vasopressin administration.
2. A healthcare professional is administering a Dopamine infusion at a low dose to a client with severe heart failure. Which of the following findings is an expected effect of this medication?
- A. Lowered heart rate
- B. Increased myocardial contractility
- C. Decreased conduction through the AV node
- D. Vasoconstriction of renal blood vessels
Correct answer: B
Rationale: Dopamine, when administered at a low dose, is expected to increase myocardial contractility by stimulating beta1 receptors. This positive inotropic effect leads to an increase in cardiac output. Therefore, the correct answer is increased myocardial contractility, as it is a desired effect of administering dopamine to a client with severe heart failure.
3. A client has a new prescription for Metformin to treat type 2 diabetes. Which of the following laboratory results should be monitored?
- A. Hemoglobin A1C
- B. Liver function tests
- C. Electrolyte levels
- D. Kidney function
Correct answer: D
Rationale: Metformin is excreted by the kidneys, and impaired kidney function can lead to an increased risk of lactic acidosis, a serious side effect. Therefore, it is important to monitor kidney function regularly while a client is on Metformin. Hemoglobin A1C is used to monitor long-term glucose control, but kidney function is the priority for monitoring Metformin therapy.
4. A client is prescribed levothyroxine for hypothyroidism. Which of the following findings should indicate to the nurse that the medication is effective?
- A. Decreased heart rate
- B. Increased energy levels
- C. Weight loss
- D. Improved mental clarity
Correct answer: B
Rationale: Increased energy levels are a key indicator of the effectiveness of levothyroxine in treating hypothyroidism. Levothyroxine works to regulate thyroid hormone levels, which can lead to improved energy levels as the body's metabolism is restored. While the other options may also improve with treatment, increased energy levels directly reflect the correction of the thyroid hormone imbalance. Decreased heart rate can be an indicator of overmedication, weight loss can be attributed to increased metabolism but may not directly reflect the effectiveness of levothyroxine, and improved mental clarity is a more general cognitive improvement that may not directly relate to thyroid function.
5. A preschooler weighing 44 lb is to receive Amoxicillin 20 mg/kg/day PO divided equally every 12 hr. The available amoxicillin suspension is 250 mg/5 mL. How many mL should the nurse administer per dose?
- A. 4 mL
- B. 5 mL
- C. 6 mL
- D. 3 mL
Correct answer: A
Rationale: To calculate the dosage per administration: First, convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, calculate the required dosage per dose: (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. To determine the mL per dose, divide the required dosage by the concentration of the amoxicillin suspension: (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the correct answer is 4 mL. Choice B (5 mL) is incorrect because the correct calculation yields 4 mL. Choices C (6 mL) and D (3 mL) are also incorrect as they do not align with the accurate calculation based on the provided information.
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