EN Overview Flashcards

1
Q

what are major risk factors for aspiration in critically ill patients

A
  1. decreased levels of consciousness
  2. previous history of aspiration
  3. vomiting
  4. tracheal intubation
  5. neuromuscular disease
  6. persistent high gastric residual volume
  7. prolonged supine positioning
  8. large diameter feeding tube
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2
Q

what is the most appropriate management of hyperagranulation around a PEG tube site

A

cauterize with silver nitrate

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3
Q

_______ forms within the tract of a PEG tube and may grow on the surface of the skin. It is a source of moisture underneath the bolster causing breakdown of the skin

A

granulation tissue

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4
Q

A tube feeding schedule where formula is provided as 240mL administered over 45 mins 5x/day is known as a __________

A

intermittent schedule

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5
Q

Tube feeding provided in a volume between 240-480mL given over 45minutes several times a day with or without a pump is called _____ feeding

A

intermittent feeding

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6
Q

What is the benefit of using an electromagnetic replacement device for NGT placement?

A

it provides a 3 dimensional localization, displayed in real life. A receiver is placed on the patient at the xiphoid process, therefore the magnet follows the tip placement relative to the LES, not the pylorus.

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7
Q

In a patient with a newly placed gastrostomy or jejunostomy tube, observation of which conditions at the tube exit site would signal a possible peristomal infection?

A

foul smelling drainage

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8
Q

The most common complication soon after PEG or PEJ placement is a

A

peristomal infection

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9
Q

what type of feeding schedule would be the most appropriate for a critically ill patient with poorly controlled blood glucose

A

continuous (consistency stabilizes blood sugars)

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10
Q

Continuous tube feeding is most appropriate in the critically ill and poorly controlled diabetic TF patient as intermittent schedules may cause fluctuations in blood glucose concentrations, placing patients at risk for ______ or ______ complications

A

hypo or hyperglycemia

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11
Q

A terminally ill patient at home on hospice complains of nausea during enteral feedings. A decision is made to discontinue the enteral feeding because

A
  1. EN feeding and hydration don’t always ensure comfort
  2. During starvation the body produces ketones which are euphoric
  3. The most common symptom when nutrition/hydration are withheld is dry mouth, which is alleviated with good oral mouth care
  4. IV hydration in the terminally ill patient can raise the risk of patient discomfort and respiratory distress
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12
Q

The most common symptom when withholding hydration or nutrition from a terminally ill patient would be _____ and can be alleviated by ________

A

dry mouth

good oral mouth care

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13
Q

One method of minimizing the complications associated with refeeding syndrome is to initiate an electrolyte replacement protocol before nutrition therapy begins. This should also be done on patients that

A

are not considered to be at risk to also be added on the protocol

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14
Q

when refeeding, electrolytes should be replete via which route

A

IV, oral or feeding tube depending on appropriateness

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15
Q

when a patient is at risk for refeeding syndrome, feedings should ________ be delayed but instead __________

A

don’t delay nutrition feedings

initiate slowly, advance slowly per electrolyte levels and clinical response

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16
Q

Bacterial contamination during enteral feeding can originate from the patients throat, stomach, lungs, feeding equipment, and retrograde contamination from the patient’s own

A

secretions

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17
Q

the longer an enteral product is hung the _______ the chance of bacterial contamination

A

higher

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18
Q

A male patient suffered from a stroke 2 wks ago and has significant dysphagia. An isotonic EN formula has been infusing continuously at a goal rate for 2 days, along with an ordered 30mL water flush per hour. The pt begins to complain of bloating and his abd becomes mildly distended to 4 cm from baseline. He denies nausea, bad cramping or abd pain. His last 2 gastric residual volumes were measured at 100mL. What is the best strategy to reduce his symptoms?

A

check when his last bowel movement was and if the patient is found to be constipated, initiate a bowel regimen

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19
Q

abdominal distention from enteral feeding can be caused by _______ administration from bolus schedules, _________ solutions, pain medications that slow ______, tube migration from the stomach to the _________, cold temperature formula inadequate fluid causing constipation, and fat/fiber/lactose intolerance.

A
  1. rapid administration
  2. hyper-osmolar solutions
  3. peristalsis
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20
Q

Only hold a tube feeding if a patient’s abdominal girth has extended beyond ____ to ___ cm

A

8-10

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21
Q

Patients who are alert and cooperative are at the ____ risk of pulmonary injury from small bore feeding tube misplacement

A

lowest risk

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22
Q

Oral or nasogastric feeding tubes used for EN should only be indicated for use less than ____ weeks

A

4 weeks

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23
Q

Placement of feeding tubes is complicated in uncooperative patients with anatomic abnormalities and critically ill patients in which ______ is inhibited

A

swallowing

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24
Q

a patient with oral cancer who has gained 10 lbs since starting home bolus EN feedings via gastrostomy tube complains of pain and pressure on the “inside of his stomach.” but no redness or drainage at the exterior gastrostomy site. What is the most appropriate response for the clinician?

A

refer the patient to the gastroenterologist or enterostomal nurse

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25
Q

a new occurrence of pain at or near the tube feeding site of a patient should be promptly evaluated by

A

the patient’s GI doctor or enterostomal nurse

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26
Q

Constipation in the enterally fed patient may be associated with

A
obstruction
lack of adequate hydration
prolonged best rest / lack of activity
long term fiber free feedings
narcotics
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27
Q

what is most likely the cause of watery diarrhea and bloating in the enterally fed adult

A

sorbitol content of liquid medications

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28
Q

An enterally fed patient reports nausea and vomiting. If delayed gastric emptying is the suspected cause, what can be done to improve the patient’s symptoms

A

decrease or discontinue narcotic meds
use low fat. low fiber formulas
administer TF at room temp
decrease the rate or volume of the feeding

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29
Q

the initiation of enteral tube feeding should be delayed in the ICU when the patient is _________, and not ______ to decrease the risk of intestinal ischemia

A

hemodynamically unstable

fully volume resuscitated

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30
Q

evidence of bowel sounds is _______ required prior to the initiation of EN

A

NOT required

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31
Q

Patients at risk for refeeding syndrome should _____ delay EN

A

NOT delay

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32
Q

how should EN feeding be initiated and advanced in the hospitalized patient

A

use a full strength formula, start at 10-40mL/hr and advance to goal rate within 1-2 days

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33
Q

while a patient is receiving SLP therapy, oral foods are provided during daytime hours. To meet the patient’s nutrition requirements, polymeric tube feeding is required during the night at a rate of 75mL/hr over 10 hours. This night feeding is an example of

A

cyclic feeding

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34
Q

Patients who are on TF via pump and are initiated on oral foods during the day would likely benefit from ______ feedings schedules

A

overnight cycle feedings

35
Q

what type of insulin should be used when initiating EN in a hospitalized diabetic patient?

A

regular insulin

36
Q

An 82 year old female s/p CVA with dysphagia and subsequent PEG placement weighing 45 kg is initiated on tube feeds which provide 1500 kcal, 63 g of protein/L. The team added a modular protein supplement providing 15 grams additional protein a day. She is discharging home and will be taken care of by family. During the tube feeding education what is important to discuss with the family to prevent tube feeding syndrome

A

the importance of providing adequate free water daily

37
Q

What is tube feeding syndrome

A

the use of high protein tube feeding without adequate fluids. The kidneys are inefficiently able to excrete the solute load and can cause azotemia, hypernatremia and dehydration.

38
Q

most enteral formulas designed for oral consumption are made up primarily of

A

carbohydrates (40-60% total kcals from carbs)

39
Q

______ in enteral formulas designed for oral consumption provide palatability

A

sucrose

40
Q

blue dye is ______________ recommended for the detection of aspiration of enteral formula 2/2 low sensitivity, several cases of system toxicity and is removed by the FDA

A

NOT

41
Q

which enteral feeding method provides 240mL of formula via a syringe over as few as 4-10 minutes, 3-6 times a day

A

bolus

42
Q

bolus feedings mimic

A

normal feeding schedules

43
Q

what type of feeding delivery method is most appropriate for patients with a jejunostomy

A

continuous pump

44
Q

_______ feedings via pump minimize diarrhea and abdominal bloating

A

continuous

45
Q

which type of enteral nutrition delivery is preferred for critically ill patients

A

continuous

46
Q

why is continuous enteral tube feeding the most appropriate for critically ill patients

A

controls the rate and volume
better EN tolerance
decreased aspiration risk

47
Q

which of the following is a best practice recommendation in EN formula safety

A

change the EN feeding administration set every 24 hours with open systems

48
Q

EN that is mixed, reconstituted or diluted should be done in _________ to decrease the risk of contamination

A

a sterile, centralized location

49
Q

Only ___ to ___ hours of formula should be poured into an open set

A

8-12 hours

50
Q

canned, ready-to-use formula hang times should be a maximum of

A

12 hours

51
Q

closed EN formula can be safely used for ______ hours after opening

A

24-48 hours

52
Q

__________ formulas should be immediately refrigerated after preparation, discarded within 24 hours of not being used and should not be held at room temperature for longer than 4 hours

A

powdered

53
Q

use of purified water vs tap water does what

A

decreases risk of bacterial contamination

54
Q

what are the benefits of closed enteral feeding systems

A

decreased risk of microbial contamination
minimal manipulation needed
long hang times of 24-48 hours
requires less nursing time

55
Q

when transitioning from enteral to oral feeding, tube feeding may be discontinued when adequacy of oral intake meets at least _________ needs

A

66% of estimated needs (2/3 to 3/4)

56
Q

what information should always appear on the label of an enteral feeding product given to a hospitalized patient

A
patient identification
product name
administration method
route of delivery
access device
date and time the formula was prepared/hung/expires
57
Q

when administering multiple medications via enteral feeding tubes, medications should be

A

administered separately and flushed with 15-30mL of water before and after administration

58
Q

enteric-coated, controlled release and sustained release medications should not be ______ and given via feeding tube

A

crushed

59
Q

what type of feeding tube requires immediate replacement if it becomes dislodged as the tract can close very quickly

A

jejunostomy

60
Q

replacement of a jejunostomy tube requires

A

radiographic verification with contrast medium

61
Q

the first replacement of a gastrostomy or PEG tube should be done

A

by the physician who inserted the tube, after that it is appropriate for trained nurses to replace them

62
Q

Nasogastric or nasoduodenal tubes can be replaced by who

A

doctors, physicians assistances, nurse practitioner’s or appropriately trained healthcare providers

63
Q

what type of formulas are most likely to occlude a feeding tube

A

calorie dense

high fiber

64
Q

what can be done to assist with maintaining feeding tube patency in the adult patient

A

flush the feeding tube with 30mL of water every 4 hours during continuous feeding, and also flush after measuring GRVs

65
Q

change short term feeding tubes (NG,NJ,ND)every ____ to ___ weeks

A

4-6 weeks

66
Q

which of the following is not a research based method to restore patency to clogged feeding tubes

A

cranberry juice

67
Q

what 3 methods are used to restore patency to clogged feeding tubes?

A

water flush
mechanical de-clogging devices
pancreatic enzymes mixed with NaBicarb

68
Q

you get a consult for a patient on EN with abdominal distention, nausea and vomiting. Monitoring of GRV’s have been ordered. What intervention can be utilized to prevent feeding tube occlusion associated with GRV assessment in an adult patient

A

flush the feeding tube with 30mL of water after GRV assessment

69
Q

The Society of Critical Care Medicine and ASPEN 2016 guidelines suggest that ________ should not be used as part of routine care to monitor EN tolerance

A

gastric residual volumes

70
Q

what methods have been proven effective in decreasing the risk of aspiration associated with enteral tube feeding in adult patients

A

good oral care BID
motility agents when TF intolerance
post pyloric tube when the patient is at high risk

71
Q

what is most likely to improve tolerance of enteral feeding in a patient who is post op and documented with high gastric residual volumes, receiving bolus tube feedings

A

switch to continuous tube feedings

72
Q

recovery of gastric emptying may be slower than the return of _____ motility in the post op patient

A

small bowel

73
Q

continuous feedings is the preferred method in the _______

A

small bowel

74
Q

`what is the primary cause of oozing stools in a tube fed patient

A

fecal impaction

75
Q

______ can be manifested by symptoms of diarrhea with constipation

A

impaction

76
Q

a home enteral nutrition patient recently treated for pneumonia is noted to have new onset diarrhea. What should be the first intervention be?

A

obtain a CDiff culture especially if the patient was recently on abx

77
Q

A patient with short bowel and end-jejunostomy requires the use of an oral rehydration solution to help prevent dehydration. What best describes the preferred composition of the ORS?

A

an iso-osmolar solution such as juice diluted with 50% water, should be made up of glucose to promote salt and water absorption and 90-120mEq/L of sodium

78
Q

Glucose in oral rehydration solutions serves what function

A

to promote salt and water absorption

79
Q

why are commercial sports drinks not good oral rehydration solutions

A

they contain much more glucose and not enough sodium

80
Q

what is the optimal concentration of an oral rehydration solution for patients with short bowel syndrome to promote jejunal absorption

A

90-120mEq/L

81
Q

in critically ill patients getting early EN, which is the most likely to increase success in achieving goal feeding rates?

A

volume based EN feeding protocols

82
Q

what is the maximum hang time for human breast milk

A

4 hours

83
Q

Your patient is showing outward signs of tube feeding intolerance including nausea and abdominal distention. The nurse checks gastric residuals and the last 3 measurements are 265mL, 250mL and 330mL. What is the most appropriate recommendation

A

consider adding promotility agent