Nutrition, Hydration, and Feeding

1. Basic nutrition and therapeutic diets

A balanced diet supplies calories, protein, fluids, vitamins, and minerals. When a medical condition changes what a resident can safely eat, the doctor orders a therapeutic diet. A clear liquid diet is liquids you can see through — water, clear broth, tea, gelatin, clear juice — used before or after procedures or to rest the stomach. A pureed diet is food blended to a smooth, pudding-like consistency for residents who cannot chew or swallow solids. A mechanical soft diet is easy-to-chew food — ground or finely chopped, with soft textures — for residents with dental or chewing problems. A low-sodium diet (also called a low sodium or low-salt diet) limits salt for heart or kidney conditions or high blood pressure. A diabetic diet controls carbohydrates and sugar to keep blood glucose steady. NPO means nothing by mouth: the resident may not eat or drink anything, usually before a test or surgery, and the CNA must not offer even a sip of water.

2. Safe feeding and swallowing principles

The goal of feeding is to get food into the stomach, not the lungs. Keeping the resident upright at 75 to 90 degrees while eating and for a time afterward lets gravity help food move down the esophagus and lowers the risk of aspiration, which is food or fluid entering the airway and lungs. For a resident with visual impairment, the clock method tells them where food is on the plate — meat at twelve o'clock, vegetables at three, potatoes at six — so they can eat independently. The CNA watches for pocketing, which is food held in the cheek instead of being swallowed, and for coughing, choking, or a wet voice, all signs that swallowing is unsafe. Aspiration precautions — upright positioning, small amounts, slow pace, and checking the mouth after meals — protect the airway and prevent a serious pneumonia.

3. Hydration and dehydration

Water is needed for almost every body function, and older adults feel thirst less strongly, so the CNA encourages fluids rather than waiting to be asked — offering water frequently, keeping it within reach, and recording intake. Dehydration happens when the body loses more water than it takes in. Signs the CNA can recognize include a dry mouth and dry skin, decreased or dark urine, constipation, confusion or dizziness, sunken eyes, and poor skin turgor (skin that stays tented when gently pinched). Dehydration can quickly become dangerous, so these signs are reported promptly.

How it works

1. The CNA confirms the correct diet or NPO status, then positions the resident upright at 75 to 90 degrees.
2. The CNA describes the plate with the clock method for residents with visual impairment.
3. The CNA watches for pocketing, coughing, choking, and wet voice, and paces eating slowly.
4. The CNA encourages fluids, records intake, and reports swallowing difficulty, poor intake, or signs of dehydration to the nurse.

Common confusions

Memory aids

Remember DRIP for the signs of dehydration: Dry mouth, Reduced (dark or decreased) urine, Irritability or confusion, Poor skin turgor.

Quick review

Topic Recap

Nutrition and hydration fuel the body, and the CNA's job is to serve the correct diet, help residents eat and drink safely, and report problems. Therapeutic diets — clear liquid, pureed, mechanical soft, low-sodium, and diabetic — are ordered for a medical reason, and NPO means nothing by mouth. Safe feeding means upright positioning at 75 to 90 degrees, the clock method for visual impairment, and watching for pocketing and aspiration. Encouraging fluids and recognizing dehydration protect residents from a common, dangerous problem.

Knowledge Check

1. A resident is NPO. Which action is correct?
2. At what angle should a resident be positioned while eating?
3. A resident with vision loss cannot see the food on the tray. What technique helps them eat independently?
4. While feeding a resident, the CNA notices food collected in the resident's cheek. What is this called, and what should the CNA do?
5. Which finding is a sign of dehydration?

Answers and Rationales

1. Give the resident nothing by mouth, not even water, and follow the care plan and facility policy. NPO means the resident must not eat or drink anything, usually before a test or procedure.
2. Upright at 75 to 90 degrees. This position lets gravity help food move toward the stomach and reduces the risk of aspiration into the lungs.
3. The clock method. Describing food locations by clock position lets a resident with visual impairment eat independently instead of being fed.
4. This is pocketing. The CNA should check that the food is swallowed, report the finding to the nurse, and watch closely, because pocketing signals unsafe swallowing.
5. Dry mouth, dark or decreased urine, dizziness, confusion, or poor skin turgor are all signs of dehydration; the CNA reports them and encourages fluids as ordered.