🚧 Under construction — VoTechWorks is being built. A free tech program — complimentary, as our commitment to get America working.
voTechWorksGrade 13 · a vocational technology learning center, by urbanicity
newSchoolWorks.com › VoTechWorks › Health & Personal Services › Practical Nursing (LPN) › Geriatric Nursing Care › Lesson 2
HLT-LPN37-05 · Lesson 2 · 18 clock hours · theory

Normal Aging: Physiological and Psychosocial Changes Across Body Systems

Objective. Students will correctly differentiate normal age-related changes in at least eight body systems from abnormal findings that require nursing action, using system-by-system comparison charts.

⚠ Pending professional review

This lesson, its worked examples and its practice questions has not yet been verified by a licensed clinician in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it to make decisions about any patient or medication. Always follow your instructor, your supervising professional, and current official references and regulations.

VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.

Normal Aging: Physiological and Psychosocial Changes Across Body Systems

Aging is a universal, gradual, and irreversible biological process. As a practical nurse caring for older adults, your most important skill is knowing the difference between a change that is expected and one that demands immediate action. Confusing the two puts patients at risk—either by triggering unnecessary alarm over normal findings or, far more dangerously, by dismissing a true problem as "just old age."

Integumentary System

Normal aging brings thinner, drier, less elastic skin due to reduced collagen production and decreased sebaceous and sweat gland activity. Skin turgor diminishes, and you may see benign senile lentigines (liver spots). Wound healing slows because cell turnover decreases.

Nursing implication: Thin, fragile skin breaks down faster under pressure. Reposition bed-bound residents at least every two hours and apply moisture barriers routinely.

Report: Open wounds, signs of infection (warmth, purulent drainage, fever), or a pressure injury that worsens despite repositioning.

Musculoskeletal System

Muscle mass and strength decline (sarcopenia), bone density decreases, and joints stiffen. Posture may become slightly kyphotic, and gait slows. These changes increase fall risk.

Nursing implication: Assist with ambulation, keep pathways clear, and ensure call lights are within reach.

Report: Sudden inability to bear weight, acute joint swelling, or a fall that may suggest a fracture.

Cardiovascular System

The heart muscle becomes slightly less efficient; maximum heart rate decreases and the heart takes longer to return to baseline after exertion. Arteries stiffen, raising systolic blood pressure. Orthostatic hypotension—a drop in blood pressure when moving from lying to standing—is more common.

Nursing implication: Teach patients to rise slowly. Check orthostatic vital signs when indicated.

Report: Chest pain, new irregular pulse, a systolic blood pressure drop accompanied by dizziness or syncope, or sudden severe edema.

Respiratory System

Lung elasticity decreases, the chest wall stiffens, and cough strength weakens. Residual volume increases while vital capacity decreases. Older adults are more susceptible to respiratory infections.

Nursing implication: Encourage deep breathing, incentive spirometry after surgery, and pneumococcal and influenza vaccinations per facility policy.

Report: Respiratory rate above 20 breaths per minute at rest, new productive cough, oxygen saturation falling below the patient's baseline, or signs of pneumonia.

Renal System

Kidney mass and the number of functional nephrons decline with age. Glomerular filtration rate (GFR) decreases, reducing the kidneys' ability to concentrate urine and excrete drugs. Nocturia (waking at night to void) is common and expected. Bladder capacity decreases, and sphincter tone may weaken, leading to urgency.

Nursing implication: Monitor fluid and electrolyte balance carefully. Drug dosing adjustments are frequently needed because medications clear more slowly—this is a safety-critical point. Offer toileting opportunities every two hours.

Report: Sudden decrease in urine output, hematuria, dysuria, confusion that may signal a urinary tract infection, or signs of fluid overload.

Gastrointestinal System

Saliva production, gastric motility, and intestinal peristalsis all decrease. Constipation is common. Absorption of some nutrients (calcium, vitamin B12, iron) may decrease. Liver size and blood flow decrease, again affecting drug metabolism.

Nursing implication: Encourage adequate fiber and fluid intake. Monitor bowel patterns and document any change from the resident's usual pattern.

Report: Sudden change in bowel habits, blood in stool, significant unintended weight loss, or inability to swallow safely.

Neurological System

Brain volume decreases slightly and nerve conduction slows. Reaction time lengthens. Short-term memory recall may slow but overall cognition remains intact in healthy aging. Sleep patterns shift toward earlier waking and lighter sleep.

Nursing implication: Allow extra time for responses and instructions. Reinforce teaching with written materials.

Report: Acute confusion (delirium), sudden personality change, slurred speech, facial drooping, arm weakness, or new difficulty walking—these are never normal and require immediate action.

Sensory System

Vision changes include presbyopia (difficulty focusing on near objects), decreased ability to adapt to darkness, and increased glare sensitivity. Hearing loss (presbycusis) begins with high-frequency sounds. Taste and smell diminish, which can reduce appetite. Touch and pain perception may decrease.

Nursing implication: Ensure adequate lighting, speak clearly at a lower pitch, check that hearing aids and glasses are clean and in place, and assess nutrition status.

Report: Sudden vision loss, eye pain, or acute hearing loss—these require urgent evaluation.

Immune System

Immune response weakens (immunosenescence). Older adults mount a less robust febrile response to infection, meaning a temperature of 99 °F (37.2 °C) may be significant in a resident whose baseline is 97 °F (36.1 °C). Vaccination response is also blunted.

Nursing implication: Know each patient's baseline temperature. Subtle signs—confusion, falls, loss of appetite—may be the first clue to infection in an older adult.

Report: Any acute change in mental status, new functional decline, or even a low-grade fever in a resident with a low baseline temperature.

Psychosocial Changes

Older adults commonly face retirement, loss of peers and a spouse, changing roles, and awareness of their own mortality. Most adapt successfully; however, social isolation and grief increase the risk of depression. Depression is not a normal part of aging.

Nursing implication: Use therapeutic communication, support dignity and autonomy, and encourage meaningful activity.

Report: Persistent sadness, withdrawal, statements of hopelessness, or any expressions of suicidal ideation.

Key Safety Reminder

When in doubt, report and document. The LPN's scope of practice requires reporting significant findings to the supervising RN or provider promptly. A normal-aging explanation should never be used to dismiss a new or acute change in a patient's condition.

Key terms8

SarcopeniaAge-related progressive loss of skeletal muscle mass and strength that increases fall risk and functional decline in older adults.
PresbycusisAge-related sensorineural hearing loss that typically begins with high-frequency sounds and is the most common form of hearing loss in older adults.
PresbyopiaAge-related decrease in the eye's ability to focus on near objects, caused by reduced lens flexibility.
Orthostatic hypotensionA significant drop in blood pressure upon standing, more common in older adults due to decreased baroreceptor sensitivity and arterial stiffness, which increases fall and syncope risk.
NocturiaWaking from sleep one or more times to urinate; common and expected in older adults due to decreased bladder capacity and declining renal concentrating ability.
ImmunosenescenceThe gradual deterioration of the immune system associated with aging, resulting in blunted febrile and vaccine responses and increased susceptibility to infection.
DeliriumAn acute, sudden onset of confusion characterized by fluctuating levels of consciousness; always an abnormal finding requiring immediate nursing action regardless of the patient's age.
Glomerular filtration rate (GFR)A measure of how well the kidneys filter waste from the blood; GFR declines with normal aging, which slows drug clearance and increases the risk of medication toxicity in older adults.
In class: Lecture with projected body-system diagrams; students complete a two-column comparison chart ('Normal Aging Change' vs. 'Abnormal/Report') for integumentary, musculoskeletal, cardiovascular, respiratory, renal, gastrointestinal, neurological, sensory, and immune systems. · Paired role-play: one student acts as a 78-year-old resident describing common complaints (slower wound healing, nocturia, constipation, reduced hearing); partner practices therapeutic communication and distinguishes reportable from expected findings. · Concept-mapping exercise: each student builds a one-page concept map linking three age-related physiological changes to their nursing implications (e.g., decreased skin turgor → increased pressure injury risk → turning schedule).
Materials: LPN textbook, printed body-system comparison charts, colored markers for concept mapping, simulated assessment findings handout
Check: Scored concept map rubric: must correctly link all three selected changes to accurate nursing implications (3/3) and achieve 80% on an in-class 15-question quiz on normal vs. abnormal findings.

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.

Physiological Integrity: Basic Care and Comfort
1. An LPN assesses an 80-year-old resident and notes that the skin tents slightly when pinched on the forearm and appears thin and dry. Which interpretation is most appropriate?
Safe and Effective Care Environment: Safety and Infection Control
2. A 77-year-old resident suddenly becomes confused during morning care, which is a new behavior. The nurse's priority action is to:
Physiological Integrity: Pharmacological Therapies
3. While reviewing a care plan, the LPN notes that an 82-year-old resident takes several medications metabolized by the kidneys. Which age-related change explains why this resident is at increased risk for drug toxicity?
Physiological Integrity: Basic Care and Comfort
4. An older adult resident tells the nurse, 'I have to get up two or three times a night to use the bathroom.' How should the nurse best respond?
Physiological Integrity: Reduction of Risk Potential
5. Which of the following respiratory findings in a 75-year-old patient should the LPN report to the RN immediately?
Safe and Effective Care Environment: Safety and Infection Control
6. When teaching nursing assistants about infection recognition in older adults, the LPN correctly states that in this population a serious infection may first appear as:
Psychosocial Integrity
7. A student nurse states, 'My 80-year-old patient seems sad and withdrawn since her husband died six months ago. I guess depression is just normal in the elderly.' The LPN preceptor should correct this by explaining that:
Physiological Integrity: Physiological Adaptation
8. An LPN is completing a comparison chart on normal aging changes. Which entry in the 'Normal Aging Change' column is accurate?
Record this lesson on my transcript. Sign in with your key and enrollment email to record lessons (enroll free if you have no key). This page stays open to read and practise.
← Previous lessonProgram planNext lesson →