A nurse is preparing to administer levothyroxine 100 mcg orally to a patient with hypothyroidism. The available levothyroxine is in 50 mcg tablets.
How many tablets should the nurse administer?

Choice A rationale
Raised toilet seats are not a safety risk for older adults. In fact, they can help prevent falls in the bathroom by reducing the distance an individual has to move to sit down and stand up from the toilet.
Choice B rationale
Throw rugs are a safety risk for older adults. They can easily cause tripping and falling, especially if the edges are not secured.
Choice C rationale

A water heater temperature of 54.4°C (130° F) is a safety risk. Water at this temperature can cause burns, especially in older adults who may have decreased sensitivity to heat.
Choice D rationale
Bathtubs with rails are not a safety risk for older adults. Rails can provide support and stability when getting in and out of the bathtub, reducing the risk of falls.
Choice E rationale
Electric cords behind furniture are a safety risk. They can be a tripping hazard and can also pose a fire risk if they are damaged.

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.