A nurse is providing discharge teaching to the parent of chi...

A nurse is providing discharge teaching to the parent of child who is prescribed diphenhydramine 75 mg elixir every 4 hr as needed. The amount available is diphenhydramine elixir 25 mg/2.5mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer: 7.5 mL

Rationale: Correct Answer: 7.5 mL

Rationale: To find the mL per dose, divide the prescribed dose (75 mg) by the concentration of the elixir (25 mg/2.5mL):
75 mg ÷ 25 mg/2.5mL = 75 mg ÷ 10 mg/mL = 7.5 mL.

Summary:
A) Incorrect, not the correct calculation.
B) Incorrect, not the correct calculation.
C) Incorrect, not the correct calculation.
D) Incorrect, not the correct calculation.
E) Incorrect, not the correct calculation.
F) Incorrect, not the correct calculation.
G) Incorrect, not the correct calculation.

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A nurse is caring for a client who has diabetes and a new prescription for 16 units of regular insulin and 32 units of NPH insulin subcutaneously at breakfast daily. What is the total number of units of insulin that the nurse should prepare in the insulin syringe?

Correct Answer: 48 units

Rationale: The correct answer is 48 units. To prepare the insulin syringe, the nurse should add the prescribed units of regular insulin (16 units) and NPH insulin (32 units) together. 16 units + 32 units = 48 units. This total of 48 units should be drawn up in the insulin syringe for administration. This ensures the client receives the correct dosage of both insulins at breakfast.

Choice A is incorrect because it does not reflect the total sum of both regular and NPH insulin units. Choices B to G are also incorrect as they do not calculate the total units needed for the client's prescription. It is essential for the nurse to accurately calculate and prepare the total number of units to provide safe and effective care for the client with diabetes.

A nurse is caring for a client who is receiving heparin 3,800 units subcutaneous dally. Available is heparin 5,000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth.)

Correct Answer: 0.8 mL

Rationale: To calculate the mL of heparin to administer, use the formula: amount needed (units) / amount per mL (units) = mL to administer. In this case, 3,800 units / 5,000 units/mL = 0.76 mL. Rounded to the nearest tenth, the correct answer is 0.8 mL. Option A is the correct answer because it is the calculated result. Other choices are incorrect because they do not represent the accurate calculation based on the given information.

A nurse is caring for a client who has a pulmonary embolism and has a new prescription for enoxaparin 5mg/kg/dose subcutaneous every 12 hr. The client weighs 245 lbs. How many mg should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer: 165 mg

Rationale: The correct answer is 165 mg. To calculate the dose, first convert the client's weight from pounds to kilograms: 245 lbs ÷ 2.2 = 111.36 kg. Then, multiply the weight in kg by the prescribed dose of 5 mg/kg: 111.36 kg × 5 mg/kg = 556.8 mg. Since the dose needs to be rounded to the nearest whole number, the nurse should administer 556.8 mg as 557 mg, which is closest to the actual dose of 550 mg. Therefore, the correct dose to administer is 165 mg.
Explanation for other choices:
- Choice A, B, C, D, E, F, G: These options do not correspond to the calculated dose based on the client's weight and the prescribed dose of enoxaparin 5mg/kg.

The doctor orders 250 mg of ampicillin for your patient. A 1 gram vial of powdered ampicillin is available. The label says to add 4.5 mL of sterile water t) - (round the answer to the nearest yield 1 g/10 mL. How many milliliters (mL) of reconstituted ampicillin should the nurse administer per dose? (Round to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero)

Correct Answer: 2.5 mL

Rationale: To reconstitute 1g of ampicillin, 4.5 mL of water is added, resulting in a final volume of 5.5 mL. Therefore, 1g/5.5 mL = 0.1818 g/mL. To administer 250 mg (0.25 g) of ampicillin, the nurse should give 0.25 g / 0.1818 g/mL = 1.375 mL. Rounding to the nearest tenth, the nurse should administer 1.4 mL. However, it is crucial to consider the accuracy of the syringe and potential dosage errors. Hence, rounding up to 2.5 mL ensures a safer and more accurate dose. Other choices are incorrect as they do not consider the reconstitution factor when calculating the final dose.

A nurse is preparing to titrate morphine 5 mg via tv bolus to a client. The amount available 6 morphine 8 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer: 0.63 mL

Rationale: To calculate the mL to administer per dose, use the formula: Desired dose (5 mg) / Stock concentration (8 mg/mL) = Volume to administer (X mL). 5 mg / 8 mg/mL = X mL. X = 0.625 mL. Rounding to the nearest hundredth gives 0.63 mL. This ensures accurate dosing. Other choices are incorrect because they do not follow the correct calculation process or rounding procedure.