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Chapter: Medical Surgical Nursing: Gastrointestinal Intubation and Special Nutritional Modalities

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Nursing Process: The Patient With a Gastrostomy

Nursing Process: The Patient With a Gastrostomy
The focus of the preoperative assessment is to determine the pa-tient’s ability both to understand and to cope with the impend-ing surgical experience.

NURSING PROCESS: THE PATIENT WITH A GASTROSTOMY

 

Assessment

 

The focus of the preoperative assessment is to determine the pa-tient’s ability both to understand and to cope with the impend-ing surgical experience. The nurse evaluates the patient’s ability to adjust to a change in body image and to participate in self-care, along with the patient’s and the family’s psychological status.

 

The purpose of the operative procedure is explained so that the patient will have a better understanding of the expected post-operative course. The patient needs to know that the result of this surgery is to bypass the mouth and esophagus so that liquid feedings can be administered directly into the stomach by means of a rubber or plastic tube or a prosthesis. If the prosthesis is to be permanent, the patient should be made aware of this. Psy-chologically, this is often difficult for the patient to accept. If the procedure is being performed to relieve discomfort, prolonged vomiting, debilitation, or an inability to eat, the patient may find it more acceptable.

 

The nurse evaluates the patient’s skin condition and deter-mines whether a delay in healing may be anticipated because of a systemic disorder (eg, diabetes mellitus, cancer).

 

In the postoperative period, the patient’s fluid and nutritional needs are assessed to ensure proper intake of food and fluids. The nurse inspects the tube for proper maintenance and the incision for signs of infection. At the same time, the nurse evaluates the patient’s response to the change in body image and the patient’s understanding of the feeding methods. Interventions are identi-fied to help the patient cope with the tube and learn self-care measures.

 

Diagnosis

 

NURSING DIAGNOSES

 

Based on the assessment data, the major nursing diagnoses in the postoperative period may include the following:

 

        Imbalanced nutrition, less than body requirements, related to enteral feeding problems

 

        Risk for infection related to presence of wound and tube

 

        Risk for impaired skin integrity at tube site

 

        Ineffective coping related to inability to eat normally

 

        Disturbed body image related to presence of tube

 

        Risk for ineffective therapeutic regimen management re-lated to knowledge deficit about home care and the feeding procedure

 

COLLABORATIVE PROBLEMS/POTENTIAL COMPLICATIONS

Potential complications that may develop include the following:

 

        Wound infection, cellulitis, and abdominal wall abscess

 

        GI bleeding

 

        Premature removal of the tube

 

Planning and Goals

 

The major goals for the patient may include attaining an optimal level of nutrition, preventing infection, maintaining skin in-tegrity, enhancing coping, adjusting to changes in body image, acquiring knowledge of and skill in self-care, and preventing complications.

 

Nursing Interventions

 

MEETING NUTRITIONAL NEEDS

 

The first fluid nourishment is administered soon after surgery and usually consists of tap water and 10% glucose. At first, only 30 to 60 mL (1 to 2 oz) is given at one time, but the amount is in-creased gradually. By the second day, 180 to 240 mL (6 to 8 oz) may be given at one time, provided it is tolerated and no leakage of fluid occurs around the tube. Water and milk can be instilled after 24 hours for a permanent gastrostomy. High-calorie liquids are added gradually. In some settings, during the early postoper-ative period the nurse aspirates gastric secretions and reinstills them after adding enough feeding solution to bring the volume to the desired total. By this method, gastric dilation is avoided.

 

Blenderized foods are added gradually to clear liquids until a full diet is achieved. Powdered feedings that are easily liquefied are commercially available. The patient who receives blenderized tube feedings typically is not forced to give up usual dietary pat-terns, which may prove to be psychologically more acceptable. In addition, near-normal bowel function is promoted because the fiber and residue are similar to that of a normal diet. Intake of milk is avoided in patients with lactase deficiency.

 

PROVIDING TUBE CARE AND PREVENTING INFECTION

 

A small dressing can be applied over the tube outlet, and the gas-trostomy tube can be held in place by a thin strip of adhesive tape that is first placed around the tube and then firmly attached to the abdomen. The dressing protects the skin around the incision from seepage of gastric acid and spillage of feedings.

 

The nurse verifies the tube’s placement, assesses residuals, and rotates the tube or stabilizing disk once daily to prevent skin break-down. Some gastrostomy tubes have balloons that are inflated with water to anchor the tube in the stomach. The adequacy of balloon inflation is checked weekly by deflating the balloon using a Luer-tip syringe.

 

PROVIDING SKIN CARE

 

The skin surrounding a gastrostomy requires special care because it may become irritated from the enzymatic action of gastric juices that leak around the tube. Left untreated, the skin becomes mac-erated, red, raw, and painful. The nurse washes the area around the tube with soap and water daily, removes any encrustation with saline solution, rinses the area well with water, and pats it dry. Once the stoma heals and drainage ceases, a dressing is not required. A long-term gastrostomy may require a special dressing or stabi-lization device to protect the skin around the tube from gastric se-cretions and to help secure the tube in place (Fig. 36-9).


 

Skin at the exit site is evaluated daily for signs of breakdown, irritation, excoriation, and the presence of drainage or gastric leakage. The nurse encourages the patient and family members to participate in this inspection and in hygiene activities. If skin problems do occur, an enterostomal therapist or wound care spe-cialist can be of assistance.

 

ENHANCING BODY IMAGE

 

The patient with a gastrostomy has experienced a major assault to body image. Eating, a physiologic and social function, can no longer be taken for granted. The patient is also aware that gas-trostomy as a therapeutic intervention is performed only in the presence of a major, chronic, or perhaps terminal illness.

 

Calm discussion of the purposes and routines of gastrostomy feeding can help keep the patient from feeling overwhelmed. Talk-ing with a person who has had a gastrostomy can also help the pa-tient to accept the expected changes. Adjusting to a change in body image takes time and requires family support and acceptance. Eval-uating the existing family support system is necessary. One family member may emerge as the primary support person.

 

MONITORING AND MANAGING POTENTIAL COMPLICATIONS

During the postoperative course, the nurse monitors the patient for potential complications. The most common complications are wound infection and other wound problems, including cel-lulitis at the wound site and abscesses in the abdominal wall. Be-cause many patients who receive tube feedings are debilitated and have compromised nutritional status, any signs of infections are promptly reported to the physician so that appropriate antibiotic therapy can be instituted.

 

Bleeding from the insertion site in the stomach may also occur. The nurse closely monitors the patient’s vital signs and observes all drainage from the operative site, vomitus, and stool for evi-dence of bleeding. Any signs of bleeding are reported promptly.

Premature removal of the tube, whether it is done inadver-tently by the patient or by the caregiver, is another complication. If the tube is removed prematurely, the skin is cleansed and a ster-ile dressing is applied; the nurse immediately notifies the physi-cian. The tract will close within 4 to 6 hours if the tube is not replaced promptly.

 

PROMOTING HOME AND COMMUNITY-BASED CARE 

Teaching Patients Self-Care

 

The patient who is to receive gastrostomy tube feedings in the home setting must be capable of, and responsible for, adminis-tering the tube feedings or have a caregiver who is able to do so. There must also be the physical, financial, and social resources to maintain care.

 

The nurse assesses the patient’s level of knowledge, interest in learning about the tube feeding, and ability to understand and apply the information before providing detailed instructions about how to prepare the formula and manage the tube feeding. Written materials for patients and caregivers are designed to out-line the care instructions. To facilitate self-care, the nurse en-courages the patient to participate in the tube feedings during hospitalization and to establish as normal a routine as possible.

 

Demonstration of the tube feeding begins by showing the pa-tient how to check for residual gastric contents before the feed-ing. The patient then learns how to check and maintain the patency of the tube by administering room-temperature water be-fore and after the feeding. This will establish patency before the feeding and then clear the tube of food particles, which could de-compose if allowed to remain in the tube. All feedings are given at room temperature or near body temperature.

 

For a bolus feeding, the nurse shows the patient how to intro-duce the liquid into the catheter by using a funnel or the barrel of a syringe. The receptacle is tilted to allow air to escape while the liquid is being instilled initially. As the funnel or syringe fills with liquid, the feeding is allowed to flow into the stomach by gravity by holding the barrel or syringe perpendicular to the ab-domen (Fig. 36-10). Raising or lowering the receptacle to no higher than 45 cm (18 in) above the abdominal wall regulates the rate of flow.


 

A bolus feeding of 300 to 500 mL usually is given for each meal and requires 10 to 15 minutes to complete. The amount is often determined by the patient’s reaction. If the patient feels full, it may be desirable to give smaller amounts more frequently.

The patient and caregiver must understand that keeping the head of the bed elevated for at least 1 hour after feeding facili-tates digestion and decreases the risk for aspiration. Any ob-struction requires that the feeding be stopped and the physician notified.

 

The patient or caregiver is instructed to flush the tube with 30 mL of water after each bolus or medication administration, and otherwise to flush the tube daily to keep it patent. Adaptors are available that can be secured to the end of the tube to create a “Y” site for ease of flushing or medication delivery. The flushing equipment is cleaned with warm, soapy water and rinsed after each use.

 

The patient and caregiver are made aware that the tube is marked at skin level to provide the patient a baseline for later comparison. They are advised to monitor the tube’s length and to notify the physician or home care nurse if the segment of the tube outside the body becomes shorter or longer.

 

If the patient is to use an intermittent or continuous-pressure feeding pump at home, instruction in the use of the particular type of pump is essential. Most feeding pumps have built-in alarms that signal when the bag is empty, when the battery is low, or when an occlusion is present. The patient and caregiver need to be aware of these alarms and how to troubleshoot the pump.

 

Continuing Care

 

Referral to a home care agency is important to ensure initial su-pervision and support for the patient and caregiver. The home care nurse assesses the patient’s status and progress and evaluates the techniques that are used in administering the tube feeding. Further instruction and supervision in the home setting may be required to help the patient and caregiver adapt to a physical environment and equipment that are different from the hospital setting. The nurse also reviews with the patient and caregiver information about com-plications to report (eg, dumping syndrome, nausea and vomiting, infection of the skin at the insertion site of the tube).

 

The home care nurse assists the patient and family in estab-lishing as normal a routine as possible. Some patients will want to experience a sensation of normal eating and are advised that they can try smelling, tasting, and chewing small amounts of food before taking their tube feedings. This stimulates the flow of sali-vary and gastric secretions and may give some sensation of a nor-mal meal. The chewed food can then be deposited by the patient into a funnel or syringe attached to the gastrostomy tube for administration into the stomach. The patient or caregiver is en-couraged to keep a diary to record the times and amounts of feed-ings and any symptoms that occur. The nurse reviews the diary during home visits. When the tube is to be replaced, the patient or caregiver must be taught how to do this.

 

Evaluation

 

EXPECTED PATIENT OUTCOMES

 

Expected patient outcomes may include the following:

 

1)    Achieves an adequate intake of nutrients

a.     Tolerates quantity and frequency of tube feedings

b.     Has 50 mL or less of residual gastric content before each feeding

c.      Has no diarrhea

d.     Maintains or gains weight

e.      Has normal electrolyte values

2)    Is free from infection and skin breakdown

a.     Is afebrile

b.     Has no drainage from the incision

c.      Demonstrates intact skin surrounding the exit site

d.     Inspects exit site twice a day

3)    Adjusts to change in body image

a.     Is able to discuss expected changes

b.     Verbalizes concerns

c.      Asks to speak with someone who has experienced this procedure

4)    Demonstrates skill in managing feeding regimen

a.     Helps prepare prescribed formula or blenderized food

b.     Handles equipment competently

c.      Helps administer the feeding or does so independently

d.     Demonstrates how to maintain tube patency

e.      Cleans tubing as needed

f.       Keeps an accurate record of intake

g.     Can remove and reinsert the tube as appropriate and needed for feedings

5)    Avoids complications

a.     Exhibits adequate wound healing

b.     Has no abnormal bleeding from puncture site

c.      Tube remains intact for the duration of therapy

 

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