5.3 Nutrition and Hydration: Therapeutic Diets, Feeding, and Aspiration Prevention

Nutrition and Hydration: Therapeutic Diets, Feeding, and Aspiration Prevention

Quick Answer: The six basic nutrients are carbohydrates, proteins, fats, vitamins, minerals, and water. Residents are prescribed therapeutic diets — diabetic, low-sodium, mechanical soft, pureed, and thickened liquids are the most common. When feeding a dependent resident, position them upright (90 degrees), give small bites at a slow pace, stay with them the entire meal, and watch for choking. If a resident chokes or aspirates, stop feeding, call for help, and never leave them alone.

Good nutrition and hydration are essential for healing, energy, skin integrity, immune function, and quality of life. CNAs do not plan diets (that is the dietitian's job), but you serve, observe, and document every meal. You are the first to notice when a resident is not eating or drinking well.

The Six Basic Nutrients

Adults need roughly 6 to 8 glasses (1,500–2,000 mL) of water per day unless restricted. Encourage fluids throughout the day. Report residents who refuse fluids, drink very little, or show signs of dehydration (dry mouth, dark urine, confusion, sunken eyes, low output).

Therapeutic Diets

A therapeutic diet is a special diet ordered by the doctor to manage a medical condition. You must serve the correct diet to the correct resident — the wrong diet can be dangerous (for example, a regular diet given to a diabetic, or a regular thin liquid given to a resident with dysphagia).

Trap callout: The most common diet mix-up on the exam is confusing mechanical soft with pureed. Mechanical soft = soft pieces that still need some chewing (ground meat, cooked veggies). Pureed = blended smooth, pudding texture, no chewing required. A resident on a pureed diet must NEVER be served regular chunks of food — they could choke.

Trap callout: Another common trap is giving a thin liquid (water, broth, coffee) to a resident on thickened liquids. Thickened liquids must be served at the correct consistency ordered by the doctor. If a resident on honey-thick liquids asks for water, you must say no and offer a honey-thick beverage — thin water is a choking/aspiration hazard.

Thickened Liquids in Detail

Residents with dysphagia (swallowing difficulty) from stroke, Parkinson's, dementia, or other conditions may aspirate thin liquids — the liquid enters the airway and lungs instead of the stomach, causing choking, pneumonia, or aspiration. To prevent this, the doctor orders thickened liquids.

• Nectar-thick: pours like a milkshake; the resident can drink it from a cup
• Honey-thick: pours slowly; can be drunk from a cup or eaten with a spoon
• Pudding-thick: will not pour; must be eaten with a spoon

The order specifies the exact thickness. Use the commercial thickener as directed. Stir until smooth — lumps are dangerous because they can be aspirated. Serve the liquid at the right thickness every time, even for medications (crush or dissolve as ordered, with the correct consistency).

Feeding the Dependent Resident

Some residents cannot feed themselves because of weakness, stroke, severe arthritis, advanced dementia, or vision loss. The CNA feeds them. This is also a skills that may appear on the Indiana skills exam.

Steps

1. Wash your hands. Put on gloves if you might touch the resident's mouth.
2. Identify the resident and confirm the diet order. Check the meal tray — name, diet, food consistency. Never serve a meal tray to the wrong resident.
3. Position the resident upright — head of the bed at 90 degrees (Fowler's), or as high as they can tolerate. A resident who is not upright can aspirate. If they cannot sit up well, do not feed them lying flat; report to the nurse.
4. Protect clothing with a bib or towel. Wash the resident's hands before the meal.
5. Offer a sip of water or liquid before starting (thickened if ordered) to moisten the mouth.
6. Test the temperature of hot foods by touching the dish (not with your fingers in the food). Stir hot foods. Do not blow on the food. Make sure food is not too hot.
7. Sit at eye level with the resident — do not stand over them. Feeding from a standing position is disrespectful and tiring for the resident.
8. Feed small bites — about a half-spoonful at a time. Use a spoon, not a fork, unless the resident prefers a fork. Alternate foods and drinks so the meal is not boring.
9. Ask what they want to eat next. Do not force an order. Let them decide which food first, when to drink. Give them time to chew and swallow fully.
10. Watch for swallowing. Make sure the mouth is empty before offering the next bite. Watch for pocketing food in the cheek (common in stroke and dementia).
11. Do NOT rush. A meal may take 30–45 minutes. Rushing causes choking and aspiration. If you do not have time, ask another CNA to take over or come back — never speed-feed a resident.
12. Never mix foods on the spoon unless the resident asks for it (some residents like all foods mixed; most do not).
13. Offer fluids throughout the meal — about every 4–5 bites — to help swallowing and hydration. Always use the correct thickness if the resident is on thickened liquids.
14. Stay with the resident the entire meal. Never leave a dependent eater alone — they could choke with no one to help.
15. When the resident is finished, offer a warm washcloth for the hands and face. Remove the tray. Reposition the resident comfortably. Leave the head of the bed up for at least 30 minutes after eating to prevent reflux and aspiration.
16. Document how much the resident ate (use percentages — 100%, 75%, 50%, 25%, none), how much fluid they drank, and any problems (choking, coughing, refusing food, vomiting). Report poor intake, refusal, or any swallowing problem to the nurse.

Trap callout: Never prop a meal tray in front of a dependent resident and walk away. "Tray delivery" is not feeding. A resident who cannot feed themselves must be fed by a person, with full attention, the entire meal.

Aspiration Prevention and Response

Aspiration is when food, liquid, or vomit enters the airway and lungs. It is a medical emergency that can cause choking, aspiration pneumonia, and death. Residents at highest risk: stroke, Parkinson's, dementia, dysphagia, weak cough, and those who are fatigued or lying flat.

Prevention

• Upright position — 90 degrees during the meal and for 30 minutes afterward. Never feed a resident lying flat.
• Small, slow bites. Half-spoonful. Wait for the resident to swallow before the next bite.
• Check the mouth is empty before the next bite. Pocketed food in the cheek is a sign of swallowing trouble.
• Correct consistency. Use the ordered diet — never give thin liquids to a dysphagia resident. Never give chunks to a pureed-diet resident.
• No rushed feeding. Take your time. A meal takes as long as it takes.
• Avoid problem foods for at-risk residents: thin liquids, dry crumbly foods (crackers, dry bread), sticky foods (peanut butter), mixed consistencies (soup with chunks in broth).
• Stay with the resident the entire meal. Never leave a dependent eater alone.
• Encourage the resident to tuck their chin (chin-tuck maneuver) when swallowing — this is sometimes ordered by the speech therapist.
• Good oral care before and after meals reduces bacteria that cause aspiration pneumonia.

If Choking / Aspiration Occurs

1. Stop feeding immediately.
2. Ask the resident if they are choking. If they cannot speak, cough, or breathe, call for help and begin the Heimlich maneuver (abdominal thrusts) as trained.
3. Stay with the resident. Never leave a choking resident alone to go get help — call out loudly to summon another staff member.
4. Notify the nurse immediately. Report any coughing, choking, wet-sounding voice, or watery eyes during a meal, even if the resident recovers — these are signs of aspiration and the nurse must assess.
5. Document the event and report.

Trap callout: A resident who "clears their throat" or has a wet, gurgling voice during a meal is silently aspirating. Do NOT keep feeding. Stop and report to the nurse immediately.

AM and PM Care Routines

Daily care is organized into two main routines. Both protect skin, support dignity, and improve comfort.

AM (Morning) Care

Performed after the resident wakes up, before breakfast.

1. Offer the bedpan or urinal, or assist to the bathroom.
2. Wash the face and hands, then a complete bath or partial bath as scheduled.
3. Provide oral care (brush teeth or clean dentures).
4. Comb hair, shave if the resident requests (and it is allowed — never shave a diabetic resident with a safety razor without checking facility policy).
5. Dress the resident (use the affected-side-first rule).
6. Apply socks and nonskid shoes.
7. Position the resident for breakfast — usually in a chair or up in bed.
8. Lower the bed, lock the wheels, leave the call light within reach.

PM (Evening / Hour of Sleep) Care

Performed before the resident goes to sleep, often after dinner.

1. Offer toileting.
2. Wash the face and hands; offer a full wash-up if needed.
3. Provide oral care.
4. Change into pajamas (apply the affected-side-first rule).
5. Provide perineal care if needed (change incontinence brief).
6. Apply lotion or barrier cream only if ordered.
7. Position the resident comfortably in bed — usually on their back or side, with pillows for support and pressure relief.
8. Lower the head of the bed, lower the bed rails as ordered, ensure the call light is within reach.
9. Adjust lighting, temperature, and noise level so the resident can sleep.
10. Document the care and the resident's condition.

Trap callout: Both AM and PM care must include oral care. A common exam mistake is skipping oral care in the PM routine. Oral care is part of every routine — even residents with no teeth need their gums and mouth cleaned, twice a day, to prevent infection and aspiration pneumonia.

Key Points for the Written and Skills Exam

• Know the six nutrients and the daily fluid requirement (1,500–2,000 mL).
• Know each therapeutic diet by name and indication: diabetic, low-sodium, mechanical soft, pureed, thickened liquids.
• Never give thin liquids to a dysphagia resident. Thickened liquids only, at the ordered consistency.
• Upright at 90 degrees for feeding and 30 minutes after the meal.
• Small bites, slow pace, watch the swallow, never rush, never leave a dependent eater alone.
• A wet, gurgling voice or throat-clearing during a meal = stop and report.
• AM and PM care both include oral care, toileting, washing, and positioning.
• Document intake: percentage of meal eaten, fluid intake in mL, and any problems.