Basic Human Anatomy and Age-Related Changes Flashcards

A CNA is caring for an 85-year-old resident who develops large, purplish, irregularly shaped bruises on their forearms after a minor bump. The resident is not on blood thinners. The CNA should recognize this as a likely sign of what age-related change?

Answer: Senile purpura, resulting from fragile blood vessels.

Senile purpura (also called actinic purpura) is a common, benign condition in older adults where thinning skin and fragile blood vessels lead to easy bruising after minor trauma. While abuse is always a consideration, the presentation described is classic for this specific age-related skin change.

An 80-year-old resident, who is usually calm, becomes highly agitated and has a disproportionately strong reaction to a small change in their daily routine. This exaggerated stress response could be linked to which age-related change in the endocrine system?

Answer: An increase in baseline cortisol levels and altered feedback mechanisms.

With aging, the hypothalamic-pituitary-adrenal (HPA) axis can become altered, leading to higher baseline cortisol levels and a less effective negative feedback loop. This can result in an impaired ability to recover from stressful stimuli, leading to responses that seem exaggerated for the situation.

A resident reports to the CNA that they are waking up three to four times every night specifically to urinate, which is disrupting their sleep. They do not report accidental leakage during the day. How should the CNA correctly identify and document this specific symptom?

Answer: Nocturia

Nocturia is the medical term for the need to wake during the main sleep period to urinate. It is distinct from incontinence, which is the involuntary leakage of urine. This resident's complaint is specifically about waking up to void, not accidental leakage.

A CNA observes a resident frequently misjudging the distance to their chair when sitting down and often stumbling on flat surfaces. These difficulties are most likely related to an age-related decline in which sensory ability?

Answer: Proprioception (sense of body position)

Proprioception is the body's ability to sense its own position, movement, and location in space. A decline in proprioception is common in older adults and directly impacts balance, coordination, and the ability to judge limb position, increasing the risk of falls.

Which of the following is a less obvious, yet significant, age-related change in the gastrointestinal system that a CNA should be aware of, as it can affect appetite, medication efficacy, and bowel regularity?

Answer: Decreased motility and reduced mucosal blood flow.

Normal aging can lead to decreased gastric motility (the contractions that move food through the stomach) and reduced blood flow to the gastric mucosa. This can slow digestion, impact how medications are absorbed, and contribute to issues like constipation and poor appetite, even if stomach acid production itself doesn't significantly change in the absence of disease.

A CNA is assisting a 90-year-old resident with dressing. The resident has noticeably thinner arms and legs than a few years ago and struggles to lift their arms to put on a shirt, despite having no joint pain. This functional decline is a hallmark of which musculoskeletal condition?

Answer: Sarcopenia

Sarcopenia is the age-related, progressive loss of muscle mass and strength. This condition directly impairs a person's ability to perform activities of daily living (ADLs), such as dressing, bathing, and walking, due to muscle weakness and loss of stamina.