A nurse is preparing to administer amoxicillin 300 mg PO. The available medication is amoxicillin oral solution 250 mg/5 mL. How many mL should the nurse administer?

Choice A rationale

Full-thickness tissue loss extending to underlying support structures such as muscle, tendon, or bone is characteristic of a stage 4 pressure ulcer, not a stage 312.
Choice B rationale
A stage 3 pressure ulcer involves full-thickness skin loss and may appear as a deep crater. There may be damage to or necrosis of subcutaneous tissue that may extend down to, but not through, underlying fascia. This description matches the statement in Choice B, making it the correct answer.
Choice C rationale
A shallow, ruptured or intact skin blister without slough is more indicative of a stage 2 pressure ulcer. In a stage 2 pressure ulcer, there is partial-thickness loss of dermis presenting as a shallow open ulcer with a red-pink wound bed.
Choice D rationale
Unbroken skin with un-blancheable erythema is characteristic of a stage 1 pressure ulcer, not a stage 3. In a stage 1 pressure ulcer, the skin is not broken, but it has redness that does not lighten (or blanch) when you press on it.

Choice A rationale
The deltoid muscle is not typically used for injections in newborns. It is not as developed as the vastus lateralis and does not have as much muscle mass.

Choice B rationale
The ventrogluteal muscle is generally not used for injections in newborns. It is not as accessible or as well developed as the vastus lateralis.
Choice C rationale
The dorsogluteal muscle is not recommended for injections in newborns due to the risk of damaging the sciatic nerve.
Choice D rationale
The vastus lateralis muscle is the preferred site for intramuscular injections in newborns. It is the most developed muscle in this age group and is free of major nerves and blood vessels.