A nurse is preparing to administer amoxicillin 350 mg PO. The available amoxicillin is 250 mg/5 mL. How many mL should the nurse administer? (Round to the nearest whole number.)
5 mL
6 mL
7 mL
8 mL
The Correct Answer is C
Step 1 is to calculate the amount of amoxicillin in milliliters. Step 2: We know that 250 mg of amoxicillin is in 5 mL.
Step 3: We need to find out how many mL contain 350 mg of amoxicillin. Step 4: Set up a proportion: 250 mg/5 mL = 350 mg/x mL.
Step 5: Cross-multiply and solve for x: 250x = 1750. Step 6: Divide both sides by 250: x = 7 mL2.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Slough, which is a layer of yellowish, dead tissue that can develop on the surface of a wound, is not a defining characteristic of a stage 3 pressure ulcer.
Choice B rationale
Persistent reddening of the skin is typically associated with a stage 1 pressure ulcer, not a stage 3. In a stage 1 pressure ulcer, the skin remains intact but may be red and may not blanch (lose color briefly) when you press your finger on it.
Choice C rationale
A stage 3 pressure ulcer involves full-thickness skin loss that appears as a deep crater. The ulcer may extend into the subcutaneous tissue layer, but not through it to the underlying
muscle or bone. This description matches the statement in Choice C, making it the correct answer.
Choice D rationale
A fluid-filled area under the skin could potentially indicate a blister or a stage 2 pressure ulcer, not a stage 3. In a stage 2 pressure ulcer, the outer layer of skin (epidermis) and part of the underlying layer of skin (dermis) are damaged or lost.
Correct Answer is A
Explanation
Choice A rationale
Placing a bath seat in the shower is a good safety measure for a patient with a history of falls. It allows the patient to sit while bathing, reducing the risk of slipping and falling.
Choice B rationale
Keeping the fluorescent ceiling light on in the room at night can actually increase the risk of falls. It can create shadows and glare that can be disorienting, especially for older adults.
Choice C rationale
Placing an area rug at the entry of the bathroom is not recommended. Rugs can easily become tripping hazards, especially if they’re not secured to the floor.
Choice D rationale
Keeping a walker at the end of the bed can be helpful for some patients, but it’s not the best indication that the patient understands home safety instructions. It’s important that the walker is used correctly and that the patient’s home is arranged to accommodate its use.
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