Nursing Elites

1. A nurse is preparing to administer heparin 8,000 units subcutaneously every eight hours. The amount available is heparin injection 10,000 units/mL. How many milliliters should the nurse administer per dose? (Round the answer to the nearest tenth)

• A. 0.8 mL
• B. 0.9 mL
• C. 10.0 mL
• D. 98.0 mL

Correct answer: A

Rationale: To determine the volume of heparin to administer per dose, divide the prescribed dose (8,000 units) by the concentration of heparin available (10,000 units/mL). 8000 units / 10000 units/mL = 0.8 mL. Therefore, the nurse should administer 0.8 mL per dose. Choice B, 0.9 mL, is incorrect as the correct calculation results in 0.8 mL. Choices C and D are significantly higher and incorrect, indicating an inaccurate calculation.

2. A nurse is preparing to administer ampicillin 500 mg in 50 ml of dextrose 5% in water (D5W) to infuse over 15 min. The drop factor of the manual IV tubing is 10 gtt/mL. How many gtt/min should the nurse set the manual IV infusion to deliver? (Round to the nearest whole number)

• A. 33 gtt/min
• B. 66 gtt/min
• C. 10 gtt/min
• D. 14 gtt/min

Correct answer: A

Rationale: To calculate the IV flow rate, you multiply the drop factor (10 gtt/mL) by the volume to be infused per minute (50 mL / 15 min). This gives you 10 gtt/mL × 50 mL / 15 min = 33.33. Rounding to the nearest whole number, the nurse should set the manual IV infusion to deliver 33 gtt/min. Choice B (66 gtt/min) is incorrect as it is the result of doubling the correct answer. Choice C (10 gtt/min) is incorrect as it only considers the drop factor without accounting for the volume to be infused. Choice D (14 gtt/min) is incorrect as it miscalculates the infusion rate based on the given information.

3. A client with congestive heart failure taking digoxin reports nausea and refuses to eat breakfast. Which action should the nurse take first?

• A. Encourage the client to eat the toast on the breakfast tray.
• B. Administer an antiemetic.
• C. Inform the client's provider.
• D. Check the client's apical pulse.

Correct answer: D

Rationale: The correct action for the nurse to take first is to check the client's apical pulse. Nausea can be a sign of digoxin toxicity, and one of the early signs of digoxin toxicity is changes in the pulse rate. By checking the client's apical pulse, the nurse can assess if the digoxin level is too high. Encouraging the client to eat or administering an antiemetic may not address the underlying issue of digoxin toxicity. While informing the provider is important, assessing the client's condition through checking the apical pulse should be the immediate priority.

4. A nurse is assessing a client who has a new prescription for chlorpromazine to treat schizophrenia. The client has a mask-like facial expression and is experiencing involuntary movements and tremors. Which of the following medications should the nurse anticipate administering?

• A. Amantadine
• B. Bupropion
• C. Phenelzine
• D. Hydroxyzine

Correct answer: A

Rationale: The correct answer is Amantadine. Amantadine is used to treat extrapyramidal symptoms, such as mask-like facial expressions, involuntary movements, and tremors, which are common side effects of antipsychotic medications like chlorpromazine. Bupropion is an antidepressant and not indicated for treating these symptoms. Phenelzine is a monoamine oxidase inhibitor used for depression and anxiety disorders, not for extrapyramidal symptoms. Hydroxyzine is an antihistamine used for anxiety and allergic conditions, not for the side effects described in the client.

5. A nurse is preparing to administer prochlorperazine 2.5 mg IV. Available is prochlorperazine injection 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth)

• A. 0.5 mL
• B. 0.005 mL
• C. 0.05 mL
• D. 5 mL

Correct answer: A

Rationale: To calculate the mL needed, set up a proportion: 5 mg / 1 mL = 2.5 mg / X mL. Cross multiply to find X: 5 * X = 2.5 * 1, X = 2.5 / 5 = 0.5 mL. Therefore, the nurse should administer 0.5 mL. Choice B, 0.005 mL, is incorrect as it doesn't match the calculated result. Choice C, 0.05 mL, is incorrect as it is ten times the correct value. Choice D, 5 mL, is incorrect as it represents the total volume of the entire vial, not the amount needed for the specific dose.

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