WorksheetsModule IIIA - Introduction to Enteral Nutrition
Total questions: 43
Worksheet time: 22mins
What is the maximum hang time for closed-system enteral formulas?
24 hours
36 hours
48 hours
72 hours
Use of a semi-elemental or elemental formula in place of a polymeric formula should be considered in all patients with
initiation of enteral nutrition.
intolerance to polymeric formula.
intestinal failure.
pancreatitis.
Which of the following is the best initial enteral feeding regimen for a critically ill adult?
Full strength formula initiated at low rate
Diluted formula initiated at low rate
Full strength formula initiated at goal rate
Diluted formula initiated at goal rate
A diabetic patient presents with early satiety, bloating, occasional vomiting, and extensive weight loss. After a thorough GI workup, the patient is diagnosed with gastroparesis. Which type of enteral formula would be more efficacious in this patient?
Standard, polymeric
High fiber
Concentrated, high protein, elemental
High fat
What is the most important intervention to reduce the risk of pulmonary aspiration during gastric tube feedings?
Elevate the head of bed 30 to 45 degrees.
Provide mouth care every 2 to 4 hours.
Turn the tube feeding off when repositioning the patient.
Hold tube feedings for a gastric residual > 200 mL.
In a patient with fat malabsorption, an enteral product containing which of the following can provide a concentrated source of energy?
Medium chain triglycerides
Free amino acids
Fructooligosaccharides
Long chain triglycerides
Which of the following medications has NOT been shown to lead to diarrhea in a patient receiving enteral nutrition?
Sorbitol-containing preparations
Alpha-2 adrenergic agonists
Antibiotics
Magnesium-containing preparations
Tube feeding is often held before and after enteral administration of all the following medications EXCEPT
warfarin.
metoprolol.
ciprofloxacin.
phenytoin.
Which of the following interventions may assist with the appropriate placement of a nasogastric feeding tube in an alert patient?
Administer IV metoclopramide
Keep patient NPO during insertion
Have the patient flex his head slightly forward
Place the patient supine for tube insertion
Drugs in microencapsulated bead or pellet form are most effectively administered through large-bore feeding tubes when mixed with
orange juice.
ginger ale.
oral electrolyte solution.
warm water.
An ICU patient requires vasopressor support to maintain hemodynamic stability. The patient's mean arterial blood pressure is 50 mm Hg, vasopressor administration is decreasing and enteral nutrition (EN) is soon to be initiated. Which of the following is considered a possible early indicator of gut ischemia in this patient?
Decreased vasopressor support
Hypoactive bowel sounds
Increased passage of stool and flatus
Increased metabolic alkalosis
A 56 year old female with dysphagia who is afebrile and weighs 60 kg is on a standard 1 mL/kcal enteral formula at 180 mL/hr over 10 hours nightly. Which of the following volumes of water flushes would best meet her daily estimated fluid requirements?
100 mL
300 mL
600 mL
1000 mL
Which of the following is LEAST likely to be problematic for placement of a percutaneous endoscopic gastrostomy (PEG) tube in a patient with liver disease?
Ascites
Coagulopathy
Gastric varices
Hepatitis C
Which of the following best describes the rationale for initiating enteral nutrition (EN)?
It may be implemented in patients who cannot or will not eat adequately.
It is reserved for malnourished patients with an intact gastrointestinal tract.
It should be implemented regardless of a patient's hemodynamics.
It is commonly used for nutrition support in hospice patients.
Which of the following is LEAST likely to facilitate transpyloric placement of a nasoenteric feeding tube?
Endoscopic placement
Bedside electromagnetic imaging system
Fluoroscopic Placement
Weighted tube tips
In severe acute pancreatitis, when compared to parenteral nutrition, both gastric and jejunal feeds are associated with all of the following EXCEPT
decreased infection rates.
reduced length of hospital stay.
decreased pain.
reduced mortality rates.
Which of the following is an indication to place a gastrojejunostomy feeding tube?
Esophageal cancer
Dysphagia
Gastroesophageal reflux
Diabetic gastroparesis
Which of the following describes an optimal method of preparing and administering medications via an enteral feeding tube?
Crush tablets and add them directly into the enteral formula
Administer liquid formulations undiluted to minimize fluid overload
Administer individual crushed medications in water
Add crushed tablets to liquid medications and administer the mixture all together
A 60-year old female is admitted with a stroke and fails a swallowing evaluation. A nasogastric tube is placed, and the physician requests an isotonic formula. Which of the following calorie densities of enteral formulas is isotonic?
1.0 kcal/mL
1.2 kcal/mL
1.5 kcal/mL
2.0 kcal/mL
Hospital-prepared enteral nutrition formulas should be stored at approximately what temperature?
4° C (39° F)
6° C (43° F)
8° C (46° F)
10° C (50° F)
What is the primary advantage of a direct percutaneous endoscopic placed jejunal tube (PEJ) versus a percutaneous endoscopic transgastric-placed jejunal tube (PEG-J)?
Reduced difficulty of placement
Reduced incidence of bleeding
Reduced incidence of migration
Reduced incidence of gastric outlet obstruction
Placement of a jejunostomy feeding tube would NOT be beneficial for which of the following conditions?
Gastroparesis
Pancreaticoduodenectomy (Whipple)
Short bowel syndrome
Chronic pancreatitis
A 74 year old male patient with history of Alzheimer's dementia and dysphagia requiring enteral nutrition as sole source of nutrition presents to hospital with fever, hypotension, poor skin turgor and dry mucus membranes. His height is 5'9" and weight is 67 kg. He is receiving 1200mL free water per day from enteral nutrition formula and 400mL from free water flush. His estimated calorie needs are 1800 kcal/day. How should his fluid needs be calculated?
20 mL per kg
1 mL per calorie intake
1 mL per calorie calculated
30 mL per kg
Which of the following enteral formulas is LEAST likely to be contaminated with micro-organisms?
Reconstituted powdered formula
Decanted liquid formula
Ready to hang formula
Blenderized tube feeding formula
Which of the following is a benefit of early enteral nutrition in critically ill adult patients?
Increases translocation of gut bacteria
decreases structural integrity of intestinal villae
Maintains risk for infectious complications
Preserves gut mucosal integrity
A patient is admitted with a traumatic brain injury and upon assessment it is determined that the patient will require enteral nutrition for the next three weeks. Which of the following is the preferred method of feeding tube placement?
Laparoscopic
Open surgical
Nasoenteric
Percutaneous endoscopic
Which of the following patient populations would most likely have difficulty tolerating a polymeric enteral formula?
Crohn's disease
Chyle leak
Gastroparesis
Celiac disease
In patients with pancreatitis, which of the following parameters would be LEAST important in predicting tolerance of enteral feedings?
APACHE II score
Duration of NPO
Abdominal pain
Triglyceride level
What is the gold standard for determining proper position of a feeding tube placed at the bedside?
Radiographic confirmation
pH testing for aspirate acidity
Aspiration of enteric contents
Air sufflation and auscultation over the gastric bubble
Compared to gastric feeding, post pyloric feeding is associated with which of the following outcomes in critically ill patients?
Longer time to achieve target nutrition
Increased nutrient delivery
Increased gastroesophageal regurgitation
Decreased rate of ventilator-associated pneumonia
Which of the following is most often a CONTRAINDICATION to percutaneous endoscopic gastrostomy (PEG) tube placement?
Ascites
Partial gastrectomy
Obesity
Prior PEG
Tube feedings can be effectively used in which of the following conditions?
Intractable vomiting
High output GI fistula
Open abdomen
Paralytic ileus
Lactose is a common ingredient in which type of enteral formula?
Semi-elemental adult formula
Standard adult formula
Standard infant formula
Elemental infant formula
A patient with acute respiratory distress syndrome (ARDS) receiving enteral nutrition will benefit most from
supplemental arginine.
formulas containing omega-6 fatty acids.
formulas containing omega-3 fatty acids.
avoidance of overfeeding.
Which of the following is an advantage of a gastrostomy feeding tube compared to a nasogastric feeding tube?
Reduced incidence of aspiration
Appropriate for long term feeding
More successful delivery of calories
Reduced incidence of gastric perforation
Which of the following strategies can be employed to reduce the risk of feeding tube occlusion?
Flush with water before and after medications
Increase total daily free water flushes
Switch enteral feeding to a fiber-containing enteral formula
Switch enteral feeding to a lower fat enteral formula
A 45-year-old male was admitted with chronic stage IV pressure injuries, sepsis and acute respiratory failure requiring mechanical ventilation. The patient's BUN is stable, he has no additional excess GI losses via drains or tubes. A polymeric high protein enteral nutrition formula was started on day 1 of admission. On day 7 of admission, the primary care team requested an evaluation of the protein dose provided by the enteral nutrition. Enteral nutrition was the patient's sole source of nutrition and provides 136 grams (1.5gm/kg) protein per day. What is the best method to assess protein adequacy?
BUN level
Pre-albumin level
Nitrogen balance study
Wound healing
Which of the following is a desirable feature of skin-leel or low-profile enteral access devices?
They are more comfortable and cosmetically appealing
They can be placed only as an exchange tube
They are used solely for gastric access
They can be used for feedings and medications
Which of the following would be the most appropriate tube feeding formula for a patient with extensive second and third degree burns?
High fat
High protein
High carbohydrate
High fiber
The use of enteral nutrition formulas enriched with branched-chain amino acids may benefit patients with
cirrhosis.
hepatic failure.
liver transplantation.
refractory encephalopathy.
Which of the following represents modular products?
Safflower oil, protein, glucose, and selenium
Glucose, glutamine, water, and MCT oil
Protein, cholecalciferol, fiber, and safflower oil
MCT oil, glucose, fiber, and protein
Which of the following medications would be appropriate to crush and deliver via an enteral feeding tube?
Nifedipine XL
Metoprolol immediate release
Enteric coated aspirin
Diltiazem CD
A patient is receiving enteral nutrition during her second trimester of pregnancy. Nutritional assessment data reflect an average maternal weight gain of 0.42 lbs per week, normal fetal growth, an albumin of 2.0 gm/dL, and a nitrogen balance of +2 gm/day. Based on the data provided, which of the following parameters is not useful in assessing the efficacy of enteral nutrition in pregnancy?
Maternal weight gain
Fetal growth
Serum albumin
Nitrogen balance
