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newSchoolWorks.com › VoTechWorks › Health & Personal Services › Nursing Assistant (CNA) › Patient Care Fundamentals for Nursing Assistants › Lesson 5
HLT-CNA36-02 · Lesson 5 · 5 clock hours · field

Nutrition Assistance, Feeding, and Hydration Monitoring

Objective. The student will set up a meal tray for a simulated patient with a standard diet and a patient with a mechanically altered diet, assist with feeding using safe technique, record intake as a percentage of meal consumed, and identify verbal and physical signs of dysphagia that require immediate reporting

⚠ 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.

Why Nutrition and Hydration Matter in Patient Care

Adequate nutrition and hydration support healing, prevent skin breakdown, maintain muscle strength, and support every body system. As a nursing assistant (CNA), you will help patients eat and drink at nearly every shift. You are not responsible for choosing what a patient eats—that is determined by the licensed care team—but you are responsible for delivering meals safely, assisting with feeding when needed, and reporting any concerns you observe.

Diet Types You Will Encounter

The care team (physician, dietitian, speech-language pathologist, and nurse) orders a specific diet for each patient based on medical needs. You must follow the diet order exactly as written.

If a patient refuses the ordered diet modification or asks for a food not on the tray, do not provide it. Inform the nurse.

Setting Up the Meal Tray

Before bringing the tray to the patient:

1. Check the patient's name on the tray ticket against their identification band.

2. Confirm the diet type matches the care plan.

3. Arrange items within the patient's reach. Open cartons and packaging. Cut food into bite-sized pieces if needed.

4. Raise the bed or position the patient in a chair so they are sitting upright at 90 degrees. This position uses gravity to help food and liquid travel safely down the esophagus and reduces the risk of aspiration (food or liquid entering the airway).

5. Place the overbed table at a comfortable height.

Never serve a meal to a patient who is lying flat or semi-reclined unless the nurse has specifically instructed otherwise for a clinical reason.

Assisting with Feeding: Safe Technique

Some patients can feed themselves with setup help. Others need partial or full assistance. When feeding a patient:

Recognizing and Responding to Dysphagia

Dysphagia means difficulty swallowing. It is a serious safety concern because it can lead to aspiration, aspiration pneumonia, or choking. You are not trained to diagnose dysphagia, but you must recognize warning signs and act immediately.

Signs of dysphagia during or after feeding:

What to do:

1. Stop the feeding immediately.

2. Keep the patient upright and calm.

3. Call the nurse right away—do not leave the patient alone if possible; use the call light or call out for help.

4. Document what you observed on the progress note: the time, what food or liquid was offered, the exact behaviors you saw, and the nurse you notified.

This is a strict scope-of-practice boundary. You do not reassess or retry feeding on your own. The nurse will evaluate the patient and determine next steps.

Monitoring and Recording Intake

Many facilities track fluid and food intake as part of Intake and Output (I&O) monitoring. After each meal you assist with, you will estimate and record the percentage of the meal consumed. Facilities commonly use a simple percentage scale (0%, 25%, 50%, 75%, 100%). Accurate recording helps the nurse and dietitian identify patients at risk for malnutrition or dehydration before a crisis develops.

If a patient consistently eats less than 75% of meals or refuses fluids, report this to the nurse—do not wait until the end of the shift.

Safety Summary

Key terms9

DysphagiaDifficulty swallowing; a condition that increases the risk of aspiration and requires immediate reporting to the nurse if signs appear during feeding.
AspirationThe entry of food, liquid, or stomach contents into the airway instead of the esophagus; a potentially life-threatening event that can lead to aspiration pneumonia.
Mechanical soft dietA diet of soft, easy-to-chew foods such as cooked vegetables and ground meat, ordered for patients who have chewing difficulties but can swallow normally.
Pureed dietA diet in which all foods are blended to a smooth, lump-free consistency, ordered for patients with significant chewing or swallowing difficulties.
Thickened liquidsLiquids altered to a specified consistency (such as nectar-thick or honey-thick) by order of the care team to slow flow and reduce aspiration risk in patients with swallowing disorders.
PocketingA dysphagia sign in which a patient stores food in the cheeks or sides of the mouth without swallowing it.
Intake and Output (I&O)A clinical record tracking how much a patient consumes (food and fluid) and eliminates; used to identify malnutrition, dehydration, or fluid imbalance.
90-degree upright positionThe safest positioning for eating and drinking; uses gravity to move food and liquid toward the stomach and reduces the risk of aspiration.
Scope of practiceThe tasks and responsibilities a CNA is legally and professionally authorized to perform; CNAs observe and report swallowing concerns but do not diagnose or independently manage dysphagia.

Worked examples4

1. A patient ate all of the mashed potatoes, half of the green beans, none of the bread roll, and all of the pudding. The tray contained four equal-portion items. What percentage of the meal did the patient consume, and how should it be recorded?
  1. Step 1: Count the total number of equal food items on the tray: 4 items (mashed potatoes, green beans, bread roll, pudding).
  2. Step 2: Determine how much of each item was eaten, expressed as a fraction: mashed potatoes = 1/4 of meal (all of one item out of four); green beans = half of one item = 1/8 of meal; bread roll = 0; pudding = 1/4 of meal.
  3. Step 3: Add the fractions: 1/4 + 1/8 + 0 + 1/4 = 2/8 + 1/8 + 0 + 2/8 = 5/8.
  4. Step 4: Convert to a percentage: 5 ÷ 8 = 0.625, which equals 62.5%.
  5. Step 5: Round to the nearest facility percentage interval. Most facilities use 25% increments, so record 75% only if rounding up is your facility's practice; otherwise record 50% or 75% per policy—here, 62.5% is closest to 75%. Use your facility's rounding convention and document accordingly.
Answer: The patient consumed approximately 63% of the meal (62.5%). Using a standard 25% scale, this is typically documented as 75% consumed, but always follow your facility's specific rounding policy.
2. A patient drank 6 ounces of nectar-thick juice and 4 ounces of water at lunch, and 8 ounces of thickened milk at dinner. What is the total fluid intake in ounces for those two meals?
  1. Step 1: List all fluid amounts consumed: 6 oz nectar-thick juice + 4 oz water + 8 oz thickened milk.
  2. Step 2: Add the values: 6 + 4 + 8 = 18 oz.
  3. Step 3: Record 18 oz of fluid intake for the two meals combined on the I&O form and report to the nurse if this total is below the expected fluid intake goal noted in the care plan.
Answer: Total fluid intake for the two meals is 18 ounces.
3. A patient's tray has five food items. She finished 100% of two items, 50% of one item, and ate nothing from two items. Calculate her meal intake percentage.
  1. Step 1: Assign each item an equal share of the meal: each of 5 items = 20% of the total meal.
  2. Step 2: Calculate the contribution of each item eaten: Item 1 (100%) = 20%; Item 2 (100%) = 20%; Item 3 (50%) = 10%; Item 4 (0%) = 0%; Item 5 (0%) = 0%.
  3. Step 3: Sum the contributions: 20 + 20 + 10 + 0 + 0 = 50%.
  4. Step 4: Record 50% intake on the I&O or meal documentation form.
Answer: The patient consumed 50% of her meal.
4. You are assisting a patient who has eaten 0% of breakfast and 25% of lunch today. The care plan flags any patient eating less than 75% of two consecutive meals for nurse notification. Should you notify the nurse now, at the end of your shift, or not at all?
  1. Step 1: Compare observed intake to the threshold: breakfast = 0% (below 75%); lunch = 25% (below 75%). Two consecutive meals are below 75%.
  2. Step 2: The care plan criterion is met: two consecutive meals below 75%.
  3. Step 3: Report to the nurse immediately after lunch, not at the end of the shift. Delays in reporting poor intake can allow dehydration or malnutrition to worsen without intervention.
Answer: Notify the nurse immediately after lunch, not at the end of the shift, because two consecutive meals below 75% meets the care plan threshold for reporting.

The math in this lesson2

Learners add eaten portions as fractions (5/8) and convert to a 62.5% meal-intake percentage.
5.NF.17.RP.3
Brush up in the math halls at newSchoolWorks.com:
In class: Instructor-led discussion and video review of the swallowing process, thickened-liquid levels used in long-term care, and the CNA's role in following diet orders as written by the care team; students complete a matching worksheet linking diet types to their defining characteristics · Feeding simulation: students take turns feeding a peer (playing an alert patient) a standardized snack using the approved technique—patient sitting upright at 90 degrees, small portions, alternating food and liquid, pausing to confirm swallow—then switch roles and provide peer feedback · Dysphagia recognition scenario: instructor plays a patient and demonstrates coughing, wet/gurgly voice, and pocketing behaviors during a simulated feeding; students must stop the feeding, call for the nurse, and document the incident on a simulated progress note; class debriefs on scope-of-practice boundaries
Materials: Adjustable chair or hospital bed, sample meal tray, simulated thickened liquid (applesauce and water), regular and thickened-liquid cups, small spoon, napkins, diet-type reference card, dysphagia signs handout, blank simulated progress-note form, video clip on swallowing anatomy (instructor-sourced)
Check: Student positions patient at 90 degrees and uses small-portion technique on every feeding attempt; correctly identifies all dysphagia signals in the instructor scenario and verbalizes correct stop-and-report response; intake percentage recorded within 10 percentage points of instructor reference answer on simulated I&O form

Practice check8

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

Safety and Infection Control / Patient Care
1. Before serving a meal tray, a CNA should first:
Role of the Nursing Assistant / Scope of Practice
2. A patient who has a mechanical soft diet asks for the crusty bread roll that came on another patient's tray. The CNA should:
Safety and Emergency Procedures / Patient Care
3. During a meal, you notice the patient's voice sounds wet and gurgly after each sip of liquid. The correct immediate action is to:
Patient Care / Safety
4. Which patient position is required during oral feeding to reduce the risk of aspiration?
Documentation and Reporting
5. A patient finished all of four equal-portion food items on the tray except for the soup, of which they ate half. What percentage of the meal did the patient consume?
Role of the Nursing Assistant / Scope of Practice
6. Thickened liquids are ordered for a patient. The speech-language pathologist specifies nectar-thick consistency. During the meal, the patient says they prefer thin water. The CNA should:
Patient Care / Observation and Reporting
7. Pocketing during a meal refers to:
Documentation and Reporting / Communication
8. A patient has eaten less than 75% of breakfast and less than 75% of lunch. According to the care plan, this should be reported. When should the CNA notify the nurse?
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