10.1 Disease Process & Common Chronic Conditions
Key Takeaways
Disease Process is one of twelve Headmaster Michigan knowledge subject areas and contributes 3 of 65 written questions; CNAs recognize and report changes—never diagnose or alter treatments.
Normal aging reduces physiological reserve; disease produces acute or progressive symptoms beyond expected age-related changes, such as sudden confusion, new unilateral weakness, or rapid weight gain from fluid retention.
Hypoglycemia presents with sweating, trembling, confusion, and irritability; hyperglycemia presents with excessive thirst, frequent urination, fruity breath, and lethargy—both require immediate nurse notification.
CHF residents may have pedal edema, orthopnea, and fluid restrictions; COPD residents need pursed-lip breathing support and Fowler's positioning—never adjust oxygen flow without a nurse order.
UTI and sepsis in older adults often present atypically with acute confusion, lethargy, or hypothermia rather than fever; report cloudy urine, foul odor, and any sudden behavior change promptly.
10.1 Disease Process & Common Chronic Conditions
Clinical Core Concept: A disease process is a pathological condition that disrupts normal body structure or function. On the Michigan Headmaster CNA written knowledge exam, Disease Process is one of twelve subject areas and accounts for 3 of 65 knowledge questions. CNAs in Michigan long-term care settings care daily for residents with diabetes, heart failure, stroke residuals, COPD, arthritis, Parkinson's disease, infections, and cancer. You are not expected to diagnose—but you must recognize observable signs, distinguish disease from normal aging, and report changes promptly to the licensed nurse.
Why Disease Process Matters & CNA Scope
The Headmaster Michigan CNA knowledge test evaluates how common illnesses affect residents and what observations require escalation. Exam questions present resident scenarios asking what the CNA should observe, report, or do within scope. Michigan facilities serve a large elderly population with multiple chronic diagnoses; missing early warning signs of hypoglycemia, fluid overload, respiratory distress, or infection allows preventable complications.
CNA scope of practice: observe, document, and report. CNAs do not diagnose, interpret lab results, prescribe treatments, adjust insulin, change oxygen flow rates, or independently restrict fluids. Report changes from baseline using objective language—what you saw, when it started, and how it differs from usual.
Normal Aging vs. Disease Process
Normal aging involves gradual changes—slower gait, mild morning joint stiffness, presbyopia, presbycusis, and decreased physiological reserve. These develop slowly over years.
Disease produces new, worsening, or acute symptoms exceeding expected aging: sudden confusion (possible delirium from infection or metabolic crisis), new unilateral weakness or slurred speech (stroke/CVA emergency), rapid weight gain with ankle swelling (CHF fluid retention), or cloudy foul-smelling urine (UTI). When in doubt, report.
Common Chronic Conditions CNAs Must Recognize
Diabetes: Hypoglycemia & Hyperglycemia
Hypoglycemia (low blood sugar)—often from missed meals or excessive insulin—presents with sweating, cool clammy skin, trembling, irritability, confusion, dizziness, and hunger. Severe cases cause seizures or unconsciousness. Offer fast-acting carbohydrate (juice, glucose gel) only if ordered in the care plan; otherwise report immediately. Never give food or drink to a confused or unconscious resident.
Hyperglycemia (high blood sugar) presents with excessive thirst, frequent urination, dry mouth, blurred vision, fatigue, fruity breath, warm dry skin, and lethargy. Report promptly and encourage fluids only if permitted by the care plan.
Heart Disease & Congestive Heart Failure (CHF)
CHF reduces cardiac pumping efficiency; fluid backs up into tissues and lungs. Observe bilateral pedal edema, pitting edema, shortness of breath (SOB), orthopnea (needs multiple pillows to breathe), rapid weight gain, fatigue, and persistent cough. Many CHF residents have fluid restrictions (e.g., 1,500 mL daily)—measure and record all oral intake accurately. Report sudden weight gain of 2+ pounds in 24 hours or worsening SOB.
Stroke (CVA) Residuals
Stroke survivors may have hemiplegia/hemiparesis, aphasia, dysphagia, visual field cuts, and emotional lability. Follow positioning, ROM, and swallowing precautions (thickened liquids, aspiration precautions). Dress weak side first. Report new sudden weakness or speech changes—a possible new stroke, not old residuals.
COPD & Respiratory Conditions
COPD (emphysema, chronic bronchitis) causes chronic cough with sputum, wheezing, dyspnea, barrel chest, accessory muscle use, and cyanosis. Position in Fowler's or high-Fowler's position; encourage pursed-lip breathing. Never adjust oxygen flow rate without nurse direction. Report increased SOB, cyanosis, or SpO2 below ordered parameters.
Arthritis & Parkinson's Disease
Arthritis causes joint pain, stiffness, swelling, warmth, and reduced ROM. Support joints during transfers; apply warm/cold packs per care plan. Report new swelling or inability to bear weight.
Parkinson's disease causes resting tremor, rigidity, bradykinesia, shuffling gait, masked expression, and freezing episodes. Allow extra time for ADLs; stand in front for visual cueing; give medications on schedule only if delegated per facility policy. Report increased falls or swallowing difficulty.
UTI, Sepsis & Atypical Infection Presentation
UTIs are common in Michigan long-term care. Classic signs: dysuria, urgency, cloudy foul-smelling urine, and new incontinence. Atypical elderly presentation: acute confusion, lethargy, agitation, falls, or hypothermia without fever due to immunosenescence. Sepsis warning signs include tachycardia, rapid breathing, altered mental status, clammy skin, and hypotension. Report any sudden mental status or vital sign change immediately.
Cancer Care: Comfort Observations
Observe pain (use resident's pain scale), fatigue, nausea, anorexia, mouth sores, skin changes, bleeding, and constipation from opioids. Provide gentle mouth and skin care. Report uncontrolled pain, vomiting, or active bleeding. Never discuss prognosis or discontinue treatments.
Common Chronic Conditions: CNA Observation & Reporting Guide
| Condition | Key Signs to Observe | Report Immediately If... | Outside CNA Scope |
|---|---|---|---|
| Diabetes | Thirst, polyuria, sweating, trembling, confusion | Seizure, unconsciousness, fruity breath | Adjusting insulin, interpreting blood glucose |
| CHF | Pedal edema, SOB, orthopnea, rapid weight gain | Respiratory distress, 2+ lb weight gain in 24 hrs | Prescribing diuretics, changing fluid orders |
| Stroke (CVA) | Unilateral weakness, slurred speech, dysphagia | New acute weakness or speech change | Diagnosing stroke, ordering imaging |
| COPD | Wheezing, dyspnea, cyanosis, productive cough | SpO2 drop, severe SOB at rest | Adjusting oxygen liter flow |
| Parkinson's | Tremor, rigidity, shuffling gait, freezing | Frequent falls, inability to swallow | Changing dopamine medication doses |
| UTI / Sepsis | Cloudy urine, dysuria, confusion, lethargy | Acute confusion, hypothermia, rapid pulse | Ordering antibiotics or cultures |
| Cancer | Pain, fatigue, nausea, mouth sores, weight loss | Uncontrolled pain, vomiting, bleeding | Discussing prognosis, stopping treatment |
Michigan Clinical Scenario: Hypoglycemia vs. Infection
Scenario: CNA Tasha cares for Mr. Delgado, an 81-year-old resident in a Grand Rapids skilled nursing facility with Type 2 diabetes. At 10:30 AM—two hours before lunch—Mr. Delgado becomes irritable, his hands tremble, and his forehead is damp. He skipped most of breakfast.
CNA Action: Tasha recognizes classic hypoglycemia signs—not normal aging irritability. She stays with Mr. Delgado, checks the care plan for hypoglycemia protocol, and immediately reports cool clammy skin, trembling, irritability, missed meal, and time of onset. She does not independently give juice unless the care plan authorizes a standing order. If Mr. Delgado had shown acute confusion without sweating, plus cloudy foul-smelling urine, Tasha would suspect UTI—same reporting urgency, different disease process.
Headmaster Exam Preparation
Correct answers reinforce: observe and report with objective descriptions; never diagnose (describe signs, not conditions); never change treatments; distinguish aging from disease (sudden changes are pathological); and know atypical elderly presentations (confusion may be the only UTI or sepsis sign).
A diabetic resident begins sweating, trembling, and becomes irritable two hours after a light breakfast. What is the most appropriate CNA action?
Report the signs to the charge nurse immediately and stay with the resident while following the care plan hypoglycemia protocol
Administer an extra dose of the resident's scheduled insulin to stabilize blood glucose
Tell the resident to rest and document the behavior as normal age-related mood change at the end of the shift
Offer the resident a large glass of water and restrict all carbohydrates for the remainder of the day
Which finding in a resident with congestive heart failure (CHF) should the CNA report to the nurse most urgently?
Mild ankle swelling present for several months documented in the care plan
Resident prefers two pillows at night as a long-standing comfort habit
Sudden weight gain of 3 pounds in one day with increased shortness of breath when lying flat
Resident requests salt-free seasoning on food per ongoing sodium-restricted diet order
An 86-year-old resident with no history of dementia becomes acutely confused, lethargic, and refuses lunch. Temperature is 97.2°F and urine appears cloudy with a strong odor. What should the CNA suspect and do?
Normal aging memory decline; encourage the resident to nap and recheck at next shift
Possible urinary tract infection with atypical presentation; report findings to the nurse immediately
Hyperglycemia only; independently give the resident a high-sugar snack before notifying anyone
Medication allergy; discontinue all prescribed medications until the physician arrives
A resident with Parkinson's disease experiences a sudden freezing episode in the hallway and nearly falls. Which action is within appropriate CNA scope?
Increase the resident's carbidopa-levodopa dose to prevent future freezing episodes
Instruct the resident to stop all walking permanently and remain in a wheelchair without consulting the nurse
Diagnose the episode as a new stroke and order an emergency CT scan through the facility computer
Stand in front of the resident, provide a visual target, ensure a clear path, report the fall risk, and document the episode
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