Correct Answer: A

Rationale: The correct order of routes of administration from fastest to slowest rate of absorption is 1. Intravenous, 2. Sublingual, 3. Intramuscular, 4. Subcutaneous. Intravenous administration provides the fastest absorption as the drug is directly injected into the bloodstream. Sublingual administration allows for rapid absorption through the mucous membranes under the tongue. Intramuscular administration has a slower absorption rate as the drug is injected into the muscle tissue. Subcutaneous administration is the slowest as the drug is injected into the fatty tissue under the skin, leading to a slower absorption compared to the other routes.

Correct Answer: B

Rationale: The correct answer is B: Potassium 6.2 mEq/L. In chronic kidney disease, the kidneys struggle to regulate potassium levels, leading to hyperkalemia. A potassium level of 6.2 mEq/L is dangerously high and can cause life-threatening cardiac arrhythmias. Hemoglobin of 9.5 g/dL may indicate anemia, which is common in chronic kidney disease but is not immediately life-threatening. Creatinine and BUN levels are markers of kidney function; although elevated levels indicate kidney impairment, they are not acutely life-threatening like severe hyperkalemia.

Correct Answer: A

Rationale: Corrected Rationale: The correct strategy for the nurse to encourage the postoperative client to ambulate is to explain the benefits of ambulation for recovery. Educating the client on how ambulation aids in preventing complications and promotes faster recovery can motivate their participation. Choice B is incorrect because waiting for the client to request to walk may lead to delays in mobilization. Choice C is incorrect as it may induce unnecessary fear in the client. Choice D is incorrect as offering pain medication before walking does not address the client's reluctance to ambulate.

Correct Answer: D

Rationale: The correct answer is D: Adipose cells and blood vessels. The subcutaneous layer, also known as the hypodermis, primarily consists of adipose (fat) tissue and blood vessels. Adipose tissue provides insulation, energy storage, and cushioning, while blood vessels supply nutrients and oxygen. Sebaceous and sweat glands are located in the dermis, which is the layer beneath the epidermis. Melanin and keratin are components of the epidermis, responsible for skin color and waterproofing, respectively. Sensory receptors and hair follicles are found in the dermis and extend into the subcutaneous layer but are not exclusive to it.

Correct Answer: A

Rationale: The correct answer is A. Pneumatic compression devices are most beneficial for immobile clients on prescribed bedrest to prevent deep vein thrombosis. Applying these devices helps in promoting circulation and preventing blood clots. Choices B, C, and D do not specifically relate to the primary indication for pneumatic compression devices, making them incorrect. Pressure ulcers, diminished pedal pulse volume, and confusion with climbing out of bed may require different interventions or treatments.