13.1 Nutrition, Special Diets, and Hydration
Key Takeaways
- The CNA does not change a diet. If the tray does not match the card, the care plan, or what the client can safely eat, stop and tell the licensed nurse — do not swap food with a roommate or add salt, sugar, or extra fluid on your own.
- Check the name card on the tray against the client's identity every time, even for a client you fed yesterday.
- Dehydration signs the CNA must report immediately include dry mouth, concentrated dark urine, new or worse confusion, and poor skin turgor.
- Encourage fluids unless the client is on a fluid restriction or is NPO. Thickened liquids are an ordered texture — preview only here; Skill 10 and section 13.3 grade the details.
- Do not crush medications or mix pills into food. That is not a Colorado CNA role. Report uneaten meals, nausea, and cultural or religious food needs to the licensed nurse and dietary.
13.1 Nutrition, Special Diets, and Hydration
Quick Answer: Feed and hydrate from the ordered diet, not from a guess. MyPlate at CNA level is fruits, vegetables, grains, protein, and dairy, with water as the usual drink unless the card says otherwise. Special diets you must recognize: NAS (no added salt), mechanical soft, puree, consistent carbohydrate, renal, fluid restriction, and NPO (nothing by mouth). The CNA does not change a diet. Check the tray card against the client's identity every time. Encourage fluids unless restricted. Report dehydration — dry mouth, concentrated urine, confusion, poor skin turgor. Report uneaten meals and nausea. Honor culture and religion in food. Do not mix crushed medications into food — that is not the CNA role. Thickened liquids are previewed here and taught in 13.3.
Why this section is on the exam
On the 2024 National Nurse Aide Assessment Program (NNAAP) outline Colorado uses, Nutrition and Hydration is leaf I.A.2 inside Activities of Daily Living (I.A). ADLs are 22% of the 60 scored written items — about 13 questions that also cover hygiene, elimination, and rest. Nutrition stems ask whether you protect the ordered diet, recognize dehydration, and keep food inside the client's rights and culture — not whether you can write a diet order.
The Skills Evaluation may assign Skill 10 — Feeds Client Who Cannot Feed Self as one of the four random skills (plus always-assigned Hand Hygiene). You have 30 minutes for five skills and must pass all five. The written exam still tests the knowledge that sits around that card: the wrong tray, the restricted pitcher, the family who wants you to hide pills in pudding.
MyPlate-style groups at CNA level
You are not a dietitian. You still need a simple plate so written items and tray talk make sense. MyPlate is the current U.S. teaching picture:
- Fruits and vegetables take about half the plate. Color and variety matter more than a CNA lecture on vitamins. Offer what is on the tray. Do not skip the vegetable because "they never eat it" unless the client refuses — then report the refusal.
- Grains take about a quarter. Training still says make half of grains whole when the diet allows it. White bread on a mechanical-soft tray is not a reason to swap in a bagel from the pantry.
- Protein takes about a quarter: meat, poultry, fish, eggs, beans, tofu, nut butters if the diet allows chewing them. A puree diet still has protein — it is just blended.
- Dairy sits to the side: milk, yogurt, cheese, or the lactose-free / fortified substitute the card lists.
- Oils and sweets are small. A consistent-carbohydrate tray is not a license to add dessert from another plate.
- Water is the everyday drink unless the person is on a fluid restriction, NPO, or thickened liquids. Those three orders override the MyPlate water habit.
A balanced tray still fails if it is the wrong person's tray or the wrong texture. MyPlate is the background. The diet order is the rule.
Special diets you must recognize
The licensed provider orders the diet. Dietary prepares it. The CNA delivers, identifies, assists, observes, and reports. You do not upgrade, downgrade, or "improve" the tray.
| Diet you will see on a Colorado tray card | What it usually means at CNA level | What you must not do |
|---|---|---|
| NAS (no added salt / sodium-restricted) | No salt packet; no shaking salt on food; high-salt condiments stay off unless the card allows a listed item | Do not add salt because the food "tastes bland" or because the roommate offered a shaker |
| Mechanical soft | Easier to chew: ground or finely chopped meat, soft cooked vegetables, no hard raw pieces or tough steak | Do not add toast, nuts, or raw carrots from another tray to "give them something to chew" |
| Puree | Smooth, no lumps — pudding-like texture for people who cannot chew or manage pieces | Do not stir chunks back in, and do not mix every item into one bowl unless that is the order and the client wants it (Skill 10) |
| Consistent carbohydrate (CCHO / diabetic-pattern) | About the same carbohydrate amount at meals so blood sugar is more predictable | Do not swap juice for extra cake, skip the starch on your own, or add sugar packets because they asked once |
| Renal | Often limits sodium, potassium, phosphorus, and sometimes protein and fluid | Do not "help" with a banana, orange juice, tomato juice, or salt substitute (many substitutes are potassium) |
| Fluid restriction | Only the measured amount the nurse or card lists for the shift | Do not leave a full extra pitcher, count ice as "free," or encourage unlimited water |
| NPO (nil per os — nothing by mouth) | No food, no water, no ice, no gum, no hard candy unless the nurse gives a listed exception | Do not offer "just a sip" or ice chips before a swallow study unless the nurse says yes |
NAS is a sodium limit, not a flavor complaint. People with heart failure or high blood pressure are often on it. A packet of salt in the drawer is not yours to add.
Mechanical soft is about chewing. Puree is about no pieces. Do not treat them as the same word. A mechanical-soft client who gets a puree-only lunch without an order has lost choice and calories. A puree client who gets mixed pieces is an aspiration risk.
Consistent carbohydrate is not always "no sugar" and is not a punishment diet. The point is consistency. Stealing the dinner roll and replacing it with two juices changes the carbohydrate load. Report what they ate. Do not redesign the meal.
Renal trays look picky on purpose. Potassium-rich foods that are healthy on a regular diet can be dangerous here. If the family brings a banana "for potassium," do not serve it. Tell the licensed nurse.
Fluid restriction and NPO are safety orders. Ice chips, broth, gelatin, and ice cream are still fluid. Chapter 10 already taught 30 mL = 1 oz and ice chips at typically half volume — use that math when you record, and do not give extra volume because the person is thirsty. Thirst on a restriction is a report, not a reason to break the limit.
The CNA does not change a diet
This is the written-exam trap that feels kind. The client wants salt. The daughter wants a milkshake with the NPO sign on the door. A coworker says the puree looks depressing so you should mash a dinner roll into it. Stop. You do not change texture, sodium, carbohydrate, fluid volume, or NPO status. You:
- Compare the tray card to the care plan / diet list you were given.
- Confirm identity (section 13.2 grades this on Skill 10).
- If anything does not match, do not serve. Take the tray back and tell the licensed nurse (and dietary, per facility path).
- If the client refuses the correct tray, do not force. Offer what is allowed, then report the refusal and how much was eaten.
A refused meal is a client right. A changed diet is outside CNA scope.
Tray card versus identity — every time
Wrong tray is wrong person, wrong texture, or both. Allergies, thickened liquids, and NPO live on that card. Check it every time, including for a long-stay client you know by first name. Rooms get moved. Cards get clipped to the wrong lid. Skill 10 will require you to look at the name card and ask the client to state their name before feeding. The written exam expects the same habit when you only set the tray down.
If the client cannot state a name, use the facility's two-identifier method (name and date of birth, name and photo, wristband — whatever the nurse and policy use). Do not ask a roommate "this is yours, right?" and start feeding.
Hydration, dehydration, and encouraging fluids
Most older adults need help to drink, not a lecture. Unless the person is restricted or NPO:
- Keep fresh water in reach (and thickened to the ordered texture if that is the order).
- Offer fluids with care at meals and between meals.
- Honor allowed preferences — water, juice, milk, the supplement on the card.
- Sit them up to drink. A flat sip is an aspiration setup (13.3).
Dehydration is a now report, not a wait-and-see. Tell the licensed nurse if you see:
- Dry mouth and cracked lips that are new or worse
- Concentrated dark, strong-smelling urine, or almost no urine
- New or worse confusion, sleepiness, or dizziness
- Poor skin turgor (skin on the chest or abdomen that stays tented — training still uses this sign; report what you saw, do not diagnose)
- A dry tongue, sunken eyes, or a person who refuses all fluids
Also report vomiting, diarrhea, fever, and heat in a room with no pitcher. You do not decide they are "just tired." Confusion plus dry mouth is a classic CNA observation pair.
Encourage fluids unless restricted. The exam loves the reverse trap: pushing water on a fluid-restriction or NPO client because dehydration is bad. The order wins. Ask the nurse how much is left in the shift total before you pour.
Thickened liquids (nectar, honey, pudding thick) belong in 13.3. Preview only: they are an ordered texture, you do not thin them with water, and a straw may be forbidden. If the pitcher on the bedside table is thin water and the card says honey-thick, that pitcher is a hazard — report and do not serve it.
Culture, religion, and food
Food is also II.B Spiritual and Cultural Needs and a client right. Kosher, halal, vegetarian, vegan, no pork, no beef, fasting days, and family-prepared food all show up in Colorado facilities.
- Serve the tray that matches the documented preference and the diet order.
- Do not replace a kosher or halal tray with a "close enough" regular tray.
- Do not mock, rush, or force food that violates belief.
- If the family brings food, ask the licensed nurse before you serve it — it may break NAS, puree, or NPO.
- If the kitchen sent pork to a client who does not eat pork, that is a wrong tray. Do not hide it under the potatoes. Get a correct tray.
Refusal on religious grounds is still a refusal you report, not a reason to argue.
Uneaten meals, nausea, and medications in food
Record how much of the meal was eaten using the facility method (often 0 / 25 / 50 / 75 / 100 percent, or each item). Report uneaten meals, especially a pattern, a sudden drop, or a meal stopped after two bites. Report nausea, vomiting, pain with swallowing, new coughing at meals, and "the food will not go down." Those are 13.3 dysphagia flags as well as nutrition flags.
Do not mix crushed medications into food. That is not the CNA role in Colorado. Even expanded-scope medication work is only placing presorted boxed or packaged meds into the mouth after an RN deems you competent (Chapter 3). Crushing, opening capsules, and hiding pills in mashed potatoes:
- Can destroy time-release or enteric-coated drugs
- Can be given without the client's knowledge — a rights problem
- Is not yours to do because a family member said "they take it better that way"
Tell the licensed nurse. Do not crush. Do not stir pills into the puree.
Colorado scenario
You work breakfast at a skilled-nursing facility in Lakewood. Mr. Alvarez has a NAS, consistent-carbohydrate card. The tray that arrives is a regular high-salt ham plate with two juices and a salt packet. His roommate says, "Just give him my extra toast and hide his blood-pressure pill in the oatmeal so he does not argue." Mr. Alvarez's mouth is dry, his urine in the hat is dark and scant, and he is more confused than last evening. A float CNA already poured him a second pitcher "because dehydration is dangerous," even though the assignment sheet also lists a 1,000 mL fluid restriction.
Do not serve the ham tray. Do not add the roommate's toast. Do not crush or hide the pill. Do not keep the extra pitcher. Check the card against his identity, hold the meal, and give an immediate verbal report to the licensed nurse: wrong tray (not NAS, not consistent carbohydrate), family/roommate request to hide a medication in food, dry mouth, concentrated urine, new confusion, and extra fluid given against a restriction. Then document what he did not eat and what you reported.
If his card had been correct and he simply refused the eggs because they are not how his family cooks them, you would honor the refusal, offer allowed alternatives through the nurse and dietary, and still report the percent uneaten — culture is not a reason to ignore intake.
Exam traps
- Changing a diet to be kind: salt on NAS, chunks on puree, extra juice on consistent carbohydrate, a banana on renal, ice chips on NPO.
- Serving without matching the tray card to the person.
- Ignoring dry mouth, dark urine, confusion, poor skin turgor.
- Pushing fluids on a restriction or NPO client.
- Treating thickened liquid as optional, or thinning it (full rules in 13.3).
- Replacing a religious or cultural tray with a regular one.
- Skipping a report of an uneaten meal or nausea.
- Crushing pills or mixing them into food because the family asked.
A Colorado CNA brings a breakfast tray. The card says mechanical soft and NAS, but the plate has a regular ham steak, a salt packet, and the roommate’s extra toast. The roommate says to serve it anyway. What should the CNA do?
Which cluster is a dehydration report the Colorado CNA must take to the licensed nurse?
A family member asks the CNA to crush the morning pills and stir them into the client’s mashed potatoes so they go down easier. What is correct?