Jesus lord of glory help me Flashcards

1
Q

how to get fat mls from kcals

A

divide by 1.1

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2
Q

Osmolarity

A

dextose grams x 5 + protien grams x 10 / volume if given

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3
Q

dextrose load

A

dextrose grams x 1000/ weight in kg/ min in a day 1440

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4
Q

fat load

A

fat grams / weight in kg

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5
Q

normal range of fat load

A

1 - 2.5

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6
Q

normal range of dextrose load

A

2-5

3.5 for diabetes

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7
Q

Enteral versus parenteral characteristics

A

Enteral nutrition: provision of nutrients into the GI tract through a tube or catheter when oral intake is inadequate (may include formulas as oral supplements or meal replacements)
Parenteral nutrition: provision of nutrients intravenously

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8
Q

Enteral formula characteristics/types

A

Standard polymeric formulas
Lactose-free, 1 kcal/mL with a balanced CHO, fat, and protein
Concentrated standard formulas: 1.5 to 2 kcal/mL for fluid restriction
High-nitrogen formulas (18%‒25% of calories
Increased protein requirements: burns, fistulas, sepsis, trauma
Elemental or predigested formulas
When the GI tract is compromised and polymeric formula is not tolerated
Specialized or disease-specific formulas
Aimed at a specific disease associated problem (e.g., renal products)
Predigested formulas
Fat is primarily MCT
Protein fragments: dipeptides, tripeptides, or oligopeptides
Disease specific (can be polymeric or predigested)
Modular components

Protein
Intact vs. hydrolyzed affect osmolarity
High protein
Glutamine and arginine
Carbohydrate
30% to 90% of kilocalories
Source and degree of hydrolysis affect osmolarity
Lactose is not used
Addition of fiber
lipid
1.5% to 55% of kilocalories
2% to 4% as linoleic acid
Vitamins, minerals, and electrolytes
DRIs; modified for specific formulas
Fluid
1 kcal/mL formulas are about 80% water
Amount of water depends on calorie density
Provide additional water via tube as needed
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9
Q

When to use parenteral over enteral nutrition and vice versa

A

Enteral nutrition
For those who can’t eat or can’t eat enough
Should be first consideration
Parenteral nutrition
Reserved for nonfunctional or severely diminished small bowel

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10
Q

RQ

A

Over feeding intake of carbon dioxide over outtake

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11
Q

Common causes of TF intolerance

A

High residual
Abdominal dissention
Pain
Diarrhea

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12
Q

When is elemental formulas recommended?

A

Elemental or predigested formulas

When the GI tract is compromised and polymeric formula is not tolerated

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13
Q

300-500mOsm = isotonic know the difference between iso & hypertonic (which is
better tolerated?)

A

iso

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14
Q

Enteral tube options, and their characteristics

A

NGT: normal digestive, hormonal and bactericidal processes of stomach. Less risk complications

Tubing: soft, flexible and well-tomerated polyurethan or silicone tubes

Placed at bedside by nursing or possibly trained RD. Check placement by aspirating GI contents or XR confirmation.

Post-pyloric tube (NDT or NJT) = more complicated to insert (intraoperative, endoscopic or fluroscopic guidance, spontaneous placement via peristalsis, bedside with computer guidance)
Indicated if problems with gastric feeding: abdominal distention/discomfort, vomiting, persistent high gastric residuals (>400 ml). ? Higher risk for aspiration pnemonia

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15
Q

How you can maintain the patency of enteral access devices?

A

Flushing
No food
Nothing that’s not reccomened

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16
Q

When is the post-pyloric TF recommended?

A
Gastric motility disorders, esophageal reflux, or persistent nausea and vomiting
Gastric pyres is
Stomach not emptying
High residuals or nausea 
Unable to be elevated
17
Q

Labs for monitoring enteral and parenteral complications

A

weight
Signs and symptoms of edema (daily)
Signs and symptoms of dehydration (daily)
Fluid intake and output (daily)
Adequacy of enteral intake (at least two times/wk)
Abdominal distension and discomfort
Gastric residuals (every 4 hr) if appropriate
Serum glucose, Calcium, electrolytes, blood urea nitrogen, creatinine (two or three times/wk)
Stool output and consistency (daily)

18
Q

Peripheral vs. central catheters for parenteral feeding.

A

Central parenteral nutrition ( CPN): catheter in large, high-blood-flow vein such as superior vena cava
Peripheral parenteral nutrition (PPN): catheter in small vein, typically the arm
Short term
Cannot tolerate concentrated solutions

19
Q

Explain the complications of feeding excess fat to a patient on parenteral feeding

A

Fatty liver

20
Q

What are some strategies to avoid aspiration?

A

Nevertheless, to minimize the risk of aspiration, patients should be posi- tioned with their heads and shoulders above their chests during and immediately after feeding.

21
Q

How many days a patient can be NPO or inadequate oral intake before ASPEN
recommends to initiate nutrition support?

A

5-10 days

24-48 critical ICUs

22
Q

How you will taper a TF to oral intake? (starting and stopping guidelines)

A
Parenteral to enteral
Takes 2 to 3 days
Stop parenteral when enteral reaches 75%
Parenteral to oral
Stop parenteral when oral reaches 75%
Enteral to oral
Reduce enteral to night only to reestablish hunger or satiety cues
23
Q

Know when bolus feeding or continuous feeding is recommended?

A

bolus is the _feeding modality of choice when patients are clinically stablewith a functional stomach is the syringe bolus method.
continuous drip infusion of formula requiresa pump. This method is appropriate for patients who do not tolerate large-volume infusions during a given feeding such asthose occurring with bolus or intermittent methods.

24
Q

Reefeding syndrome

A

Caused by overly aggressive parenteral nutrition, specifically carbohydrate
Potentially lethal
Cardiac and pulmonary complications from fluid overload
Monitor serum magnesium, potassium, and phosphorus
Start with 25% to 50% of goal parenteral nutrition in those at risk

refeedingsyndromelowserumlevelsofpotassiumm,agne- sium, and phosphoruswirh severe,potentially lethal out- c o m e t h a t r e s u l t sf r o m t h e t o o - r a p i d i n f u s i o n o f s u b s t r a t e s , particularlycarbohydrate,into the plasmawith the conse- quent releaseof insulin and shift of electrolytesinto the intracellularspaceasglucosemovesinto the cellsfor oxida- tion andthereis reductionin saltandwaterexcretio

25
Q

Ileus

A

Ileus (lack of peristalsis); enteral feeding restores gut function

ileus lossofintestinal peristalsisor lackof effectivecoordi- nated peristalsis

26
Q

Diarrhea

A

high osmolarity

27
Q

Hyperglycemia

A

too many carbs

28
Q
  1. Know the characteristics of ebb and flow phase
A

ebb
Immediate: hypovolemia, shock, tissue hypoxia
Decreased cardiac output
Decreased oxygen consumption
Lowered body temperature
Insulin levels decrease because glucagon is elevated

flow phase
Follows fluid resuscitation and restoration of oxygen transport
Increased cardiac output begins
Increased body temperature
Increased energy expenditure
Total body protein catabolism begins
Marked increases in glucose production, FFA release, circulating insulin, catecholamines, glucagon, and cortisol

29
Q

Explain the difference between stress and starvation

A

Metabolic response to stress differs from the responses to starvation
Starvation = decreased energy expenditure, use of alternative fuels, decreased protein wasting, stored glycogen used in 24 hours
Late starvation = fatty acids, ketones, and glycerol provide energy for all tissues except brain, nervous system, and RBCs

30
Q

Know the classifications of Glasgow Coma Score

A

A score of 13 to 15 indicates minor head injury; 9 to 12 corresponds to moderate injury; and a less than 8 reflects severe injury

31
Q

Burns:
Use 1997 Ireton-Jones formula, protein requirements: 1.5-2
gm/kg. Also what percentage of the total calories should come
from protein? Know how to calculate extra protein based on the
wound nitrogen losses

A

Ireton-Jones calculation for estimated energy expenditures
EEE = 1784 – 11(A) + 5(W) + 244(G) + 239(T) + 804(B)
A = age
W = weight (kg)
G = gender (female = 0; male = 1)
T = diagnosis of trauma (absent = 0; present = 1)
B = diagnosis of burn (absent = 0; present = 1)

20% to 25% kcal as protein needed; high BV
Estimation of wound nitrogen losses when calculating nitrogen balance
– 31% open wound = 0.12 g N/kg/day
answers are in the notebook

32
Q

What are cytokines and which are elevated during stress?

A

The response to injury is also regulated by metaboli- cally active cytokines (proinflammatory proteins) such as interleukin-1, interleukin-6, and tumor necrosis factor,

33
Q

What is sepsis?

A

the systemic response to an identifiable infectious agents

34
Q

What is bacteria translocation?

A

morphologic changes from acute insult to the gastrointestinal uact that may allow entry of bacteria from the gut lumen into the body; associatedwith a systemic inflammatory response that may contribute to multiple organ dysfunction s1’ndrome

35
Q

What is SIRS?

A

SIRS is the inflammatory response that occurs in infection, pancreatitis, ischemia, burns, multiple trauma, hemorrhagic shock, and organ injury

36
Q

What is the type of diet recommended before surgery?

A

well nourished or w/e

37
Q

For how many hours the person should be NPO before

surgery?

A

6