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Module IIIA - Introduction to Enteral Nutrition

Total questions: 43

Worksheet time: 22mins

Name
Class
Date
1.

What is the maximum hang time for closed-system enteral formulas?

a)

24 hours

b)

36 hours

c)

48 hours

d)

72 hours

2.

Use of a semi-elemental or elemental formula in place of a polymeric formula should be considered in all patients with

a)

initiation of enteral nutrition.

b)

intolerance to polymeric formula.

c)

intestinal failure.

d)

pancreatitis.

3.

Which of the following is the best initial enteral feeding regimen for a critically ill adult?

a)

Full strength formula initiated at low rate

b)

Diluted formula initiated at low rate

c)

Full strength formula initiated at goal rate

d)

Diluted formula initiated at goal rate

4.

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?

a)

Standard, polymeric

b)

High fiber

c)

Concentrated, high protein, elemental

d)

High fat

5.

What is the most important intervention to reduce the risk of pulmonary aspiration during gastric tube feedings?

a)

Elevate the head of bed 30 to 45 degrees.

b)

Provide mouth care every 2 to 4 hours.

c)

Turn the tube feeding off when repositioning the patient.

d)

Hold tube feedings for a gastric residual > 200 mL.

6.

In a patient with fat malabsorption, an enteral product containing which of the following can provide a concentrated source of energy?

a)

Medium chain triglycerides

b)

Free amino acids

c)

Fructooligosaccharides

d)

Long chain triglycerides

7.

Which of the following medications has NOT been shown to lead to diarrhea in a patient receiving enteral nutrition?

a)

Sorbitol-containing preparations

b)

Alpha-2 adrenergic agonists

c)

Antibiotics

d)

Magnesium-containing preparations

8.

Tube feeding is often held before and after enteral administration of all the following medications EXCEPT

a)

warfarin.

b)

metoprolol.

c)

ciprofloxacin.

d)

phenytoin.

9.

Which of the following interventions may assist with the appropriate placement of a nasogastric feeding tube in an alert patient?

a)

Administer IV metoclopramide

b)

Keep patient NPO during insertion

c)

Have the patient flex his head slightly forward

d)

Place the patient supine for tube insertion

10.

Drugs in microencapsulated bead or pellet form are most effectively administered through large-bore feeding tubes when mixed with

a)

orange juice.

b)

ginger ale.

c)

oral electrolyte solution.

d)

warm water.

11.

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?

a)

Decreased vasopressor support

b)

Hypoactive bowel sounds

c)

Increased passage of stool and flatus

d)

Increased metabolic alkalosis

12.

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?

a)

100 mL

b)

300 mL

c)

600 mL

d)

1000 mL

13.

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?

a)

Ascites

b)

Coagulopathy

c)

Gastric varices

d)

Hepatitis C

14.

Which of the following best describes the rationale for initiating enteral nutrition (EN)?

a)

It may be implemented in patients who cannot or will not eat adequately.

b)

It is reserved for malnourished patients with an intact gastrointestinal tract.

c)

It should be implemented regardless of a patient's hemodynamics.

d)

It is commonly used for nutrition support in hospice patients.

15.

Which of the following is LEAST likely to facilitate transpyloric placement of a nasoenteric feeding tube?

a)

Endoscopic placement

b)

Bedside electromagnetic imaging system

c)

Fluoroscopic Placement

d)

Weighted tube tips

16.

In severe acute pancreatitis, when compared to parenteral nutrition, both gastric and jejunal feeds are associated with all of the following EXCEPT

a)

decreased infection rates.

b)

reduced length of hospital stay.

c)

decreased pain.

d)

reduced mortality rates.

17.

Which of the following is an indication to place a gastrojejunostomy feeding tube?

a)

Esophageal cancer

b)

Dysphagia

c)

Gastroesophageal reflux

d)

Diabetic gastroparesis

18.

Which of the following describes an optimal method of preparing and administering medications via an enteral feeding tube?

a)

Crush tablets and add them directly into the enteral formula

b)

Administer liquid formulations undiluted to minimize fluid overload

c)

Administer individual crushed medications in water

d)

Add crushed tablets to liquid medications and administer the mixture all together

19.

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?

a)

1.0 kcal/mL

b)

1.2 kcal/mL

c)

1.5 kcal/mL

d)

2.0 kcal/mL

20.

Hospital-prepared enteral nutrition formulas should be stored at approximately what temperature?

a)

4° C (39° F)

b)

6° C (43° F)

c)

8° C (46° F)

d)

10° C (50° F)

21.

What is the primary advantage of a direct percutaneous endoscopic placed jejunal tube (PEJ) versus a percutaneous endoscopic transgastric-placed jejunal tube (PEG-J)?

a)

Reduced difficulty of placement

b)

Reduced incidence of bleeding

c)

Reduced incidence of migration

d)

Reduced incidence of gastric outlet obstruction

22.

Placement of a jejunostomy feeding tube would NOT be beneficial for which of the following conditions?

a)

Gastroparesis

b)

Pancreaticoduodenectomy (Whipple)

c)

Short bowel syndrome

d)

Chronic pancreatitis

23.

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?

a)

20 mL per kg

b)

1 mL per calorie intake

c)

1 mL per calorie calculated

d)

30 mL per kg

24.

Which of the following enteral formulas is LEAST likely to be contaminated with micro-organisms?

a)

Reconstituted powdered formula

b)

Decanted liquid formula

c)

Ready to hang formula

d)

Blenderized tube feeding formula

25.

Which of the following is a benefit of early enteral nutrition in critically ill adult patients?

a)

Increases translocation of gut bacteria

b)

decreases structural integrity of intestinal villae

c)

Maintains risk for infectious complications

d)

Preserves gut mucosal integrity

26.

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?

a)

Laparoscopic

b)

Open surgical

c)

Nasoenteric

d)

Percutaneous endoscopic

27.

Which of the following patient populations would most likely have difficulty tolerating a polymeric enteral formula?

a)

Crohn's disease

b)

Chyle leak

c)

Gastroparesis

d)

Celiac disease

28.

In patients with pancreatitis, which of the following parameters would be LEAST important in predicting tolerance of enteral feedings?

a)

APACHE II score

b)

Duration of NPO

c)

Abdominal pain

d)

Triglyceride level

29.

What is the gold standard for determining proper position of a feeding tube placed at the bedside?

a)

Radiographic confirmation

b)

pH testing for aspirate acidity

c)

Aspiration of enteric contents

d)

Air sufflation and auscultation over the gastric bubble

30.

Compared to gastric feeding, post pyloric feeding is associated with which of the following outcomes in critically ill patients?

a)

Longer time to achieve target nutrition

b)

Increased nutrient delivery

c)

Increased gastroesophageal regurgitation

d)

Decreased rate of ventilator-associated pneumonia

31.

Which of the following is most often a CONTRAINDICATION to percutaneous endoscopic gastrostomy (PEG) tube placement?

a)

Ascites

b)

Partial gastrectomy

c)

Obesity

d)

Prior PEG

32.

Tube feedings can be effectively used in which of the following conditions?

a)

Intractable vomiting

b)

High output GI fistula

c)

Open abdomen

d)

Paralytic ileus

33.

Lactose is a common ingredient in which type of enteral formula?

a)

Semi-elemental adult formula

b)

Standard adult formula

c)

Standard infant formula

d)

Elemental infant formula

34.

A patient with acute respiratory distress syndrome (ARDS) receiving enteral nutrition will benefit most from

a)

supplemental arginine.

b)

formulas containing omega-6 fatty acids.

c)

formulas containing omega-3 fatty acids.

d)

avoidance of overfeeding.

35.

Which of the following is an advantage of a gastrostomy feeding tube compared to a nasogastric feeding tube?

a)

Reduced incidence of aspiration

b)

Appropriate for long term feeding

c)

More successful delivery of calories

d)

Reduced incidence of gastric perforation

36.

Which of the following strategies can be employed to reduce the risk of feeding tube occlusion?

a)

Flush with water before and after medications

b)

Increase total daily free water flushes

c)

Switch enteral feeding to a fiber-containing enteral formula

d)

Switch enteral feeding to a lower fat enteral formula

37.

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?

a)

BUN level

b)

Pre-albumin level

c)

Nitrogen balance study

d)

Wound healing

38.

Which of the following is a desirable feature of skin-leel or low-profile enteral access devices?

a)

They are more comfortable and cosmetically appealing

b)

They can be placed only as an exchange tube

c)

They are used solely for gastric access

d)

They can be used for feedings and medications

39.

Which of the following would be the most appropriate tube feeding formula for a patient with extensive second and third degree burns?

a)

High fat

b)

High protein

c)

High carbohydrate

d)

High fiber

40.

The use of enteral nutrition formulas enriched with branched-chain amino acids may benefit patients with

a)

cirrhosis.

b)

hepatic failure.

c)

liver transplantation.

d)

refractory encephalopathy.

41.

Which of the following represents modular products?

a)

Safflower oil, protein, glucose, and selenium

b)

Glucose, glutamine, water, and MCT oil

c)

Protein, cholecalciferol, fiber, and safflower oil

d)

MCT oil, glucose, fiber, and protein

42.

Which of the following medications would be appropriate to crush and deliver via an enteral feeding tube?

a)

Nifedipine XL

b)

Metoprolol immediate release

c)

Enteric coated aspirin

d)

Diltiazem CD

43.

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?

a)

Maternal weight gain

b)

Fetal growth

c)

Serum albumin

d)

Nitrogen balance