A nurse is teaching a group of nursing students about spinal cord injuries in clients who are aged 65 years and older. Which of the following should the nurse identify as the most common cause of spinal cord injuries for this age group?

Choice A Reason:

"I have signed up for an aerobics class three times a week." This statement is incorrect. Participating in aerobics classes three times a week may not be suitable for someone with spinal stenosis, as certain movements and high-impact activities common in aerobics classes can exacerbate symptoms and increase the risk of injury to the spine.

Choice B Reason:

"I ride my bicycle every day." This statement is correct. Cycling is generally considered a low-impact exercise that can be beneficial for individuals with spinal stenosis, as it helps improve cardiovascular fitness without placing excessive stress on the spine. Riding a bicycle regularly may be a suitable exercise option for this client.

Choice C Reason:

"I like to jog a half a mile every day." This statement is incorrect. Jogging involves repetitive impact and can place significant stress on the spine, which may exacerbate symptoms of spinal stenosis. It is generally not recommended for individuals with spinal stenosis due to the high-impact nature of the activity.

Choice D Reason:

"I enjoy doing circuit training once a week.": Circuit training typically involves a combination of aerobic and strength-training exercises performed in rapid succession. While some components of circuit training, such as strength training, can be beneficial for individuals with spinal stenosis, the intensity and variety of exercises in circuit training may not be suitable for everyone with this condition.

Choice A Reason:

A client with a decreased potassium level is incorrect. Hypokalemia (decreased potassium level) can cause various neurological symptoms, but it doesn't directly lead to osmotic cerebral edema.

Choice B Reason:

When plasma glucose levels are rapidly lowered, an osmotic gradient develops between the brain and plasma, which can lead to cerebral edema.Brain cells pull water from the plasma, resulting in widespread edema.

Choice C Reason:

While HbA1c is an important marker of diabetes control and may indicate poor long-term management, it does not directly relate to the acute metabolic derangements (e.g., rapid osmotic shifts, severity of acidosis) that predispose to cerebral edema in DKA.

Choice D Reason:

A client with an increased creatinine level is incorrect. Elevated creatinine levels typically indicate kidney dysfunction or dehydration, but they don't directly cause osmotic cerebral edema.