Correct Answer: B

Rationale: The correct answer is B: Canned vegetables. Canned vegetables are often high in sodium due to the preservation process, so they should be avoided on a low-sodium diet. Fresh fruits (choice A), fresh chicken (choice C), and unsalted nuts (choice D) are all low-sodium options and can be included in a low-sodium diet. It is important to choose fresh or frozen vegetables over canned ones to reduce sodium intake. Fresh chicken and unsalted nuts are also good protein sources that are naturally low in sodium, making them suitable for a low-sodium diet. Therefore, clients following a low-sodium diet should prioritize fresh, whole foods over processed or canned options.

Correct Answer: A

Rationale: During a severe asthma exacerbation, the nurse's priority is to administer a rescue inhaler immediately. This action helps open the airways and improve breathing, which is crucial in managing the exacerbation. Choice B, preparing for intubation, would be considered if the client's condition deteriorates and they are unable to maintain adequate oxygenation even after using the rescue inhaler. Encouraging deep breathing exercises (Choice C) may not be appropriate during a severe exacerbation as the client may struggle to breathe. While monitoring oxygen saturation levels (Choice D) is important, the immediate administration of a rescue inhaler takes precedence to address the acute breathing difficulty.

Correct Answer: B

Rationale: Scheduling physical exercises after breakfast is the optimal choice for a client with Myasthenia Gravis. This timing allows the client to benefit from renewed energy levels after overnight rest and intake of morning nourishment, enhancing the effectiveness of the therapy session. Choices A (Before bedtime, at 2000) is not suitable as energy levels are likely lower at night, affecting the client's ability to engage effectively in physical exercises. Choices C (Before the evening meal) and D (After lunch) may not be ideal as the client may experience fatigue or weakness later in the day, making it harder to participate actively in therapy.

Correct Answer: C

Rationale: The correct angle of insertion for a subcutaneous injection, such as heparin, is 45 degrees. This angle is appropriate as it helps to ensure proper delivery of the medication into the subcutaneous tissue. Option A (15 degrees) is too shallow for a subcutaneous injection and may result in the medication being deposited into the muscle. Option B (30 degrees) is also too shallow for subcutaneous injections. Option D (90 degrees) is used for intramuscular injections, not subcutaneous injections.

Correct Answer: C

Rationale: Clients with limited mobility are at the highest risk for developing pressure ulcers due to prolonged pressure on specific areas of the body. This constant pressure can lead to tissue damage and ultimately result in pressure ulcers. While age and medical conditions such as diabetes and a history of stroke can contribute to the risk of pressure ulcers, limited mobility is the most significant factor as it directly affects the ability to shift positions and relieve pressure on vulnerable areas of the body. Therefore, the 65-year-old client with limited mobility is at the highest risk compared to the other clients. The 50-year-old client with a fractured femur may have limited mobility due to the injury, but it is temporary and may not be as prolonged as chronic limited mobility. The 30-year-old client with diabetes mellitus and the 70-year-old client with a history of stroke are at risk for developing pressure ulcers, but their conditions do not directly impact their ability to shift positions and alleviate pressure like limited mobility does.