Nutritional support 1 Flashcards

1
Q

What is malnutrition?

A

A state of nutrition in which deficiency or excess (or imbalance) of energy, protein and other nutrients causes measurable adverse effects on tissue/ body form (size, shape and composition) and function and clinical outcome. The term malnutrition does include obesity, however BAPEN is focused on the problem of ‘undernutrition’.

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2
Q

What is the phenotypic criteria for malnutrition?
(Global leadership initiative on malnutrition)

A

Weight loss:
- >5% in last 6 months
- 10% in over 6 months

Low BMI:
- <20 if <70 years
- <22 if >70 years

Reduced muscle mass:
- Using validated method of measurement

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3
Q

Why would you still feed an obese person in hospital?

A

Prevent deficiency
Aid recovery
Prevent utilisation of lean muscle mass

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4
Q

What is the etiological criteria for malnutrition?
(Global leadership initiative on malnutriton)

A

Reduced food intake or absorption:
- <50% of energy requirements
- Any reduction >2 weeks
- Any chronic gastrointestinal condition impacting on absorption

Inflammation:
- Acute disease or injury
- Chronic disease states

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5
Q

How would you detect malnutrition?

A

MUST score
- validated malnutrition screening tool
- first line tool

Blood tests
- any deficiencies e.g. iron, B12

Weight loss
- over a time period
- % loss

Physical examination
- loose clothing
- loose jewellery/ watches etc
- anthropometric measures
- dehydration –> skin
- paleness –> anaemia

BMI
- Low BMI
- Big change in BMI

Reduced muscle mass

Reduced dietary intake
- altered food patterns
- altered food amount
- appetite levels
- mood

Concentration levels?
- brain fog

Feeling cold all the time?

Faltering growth of children/ adolescents
- growth, weight charts

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6
Q

Who is at risk of malnutrition?

A

Older adults
- at hospital
- home alone
- care home

Mental health conditions

Lower socioeconomic status

Those on appetite affecting medications

Eating disorders

Chronic illnesses
- diabetes
- liver disease

Progressive illness
- cancer
- dementia

Drug/ alcohol addiction

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7
Q

What are the grading of malnutrition in terms of different phenotypic criteria?
(GLIM)

A

Moderate
- Weight loss –> 5-10% in last 6 months OR 10-20% in over 6 months
- Low BMI –> <20 if <70 years old OR <22 if >70 years
- Low muscle mass –> mild to moderate deficit

Severe
- Weight loss –> >10% in last 6 months OR >20% in. over 6 months
- Low BMI –> <18.5 if <70 years OR <20 if >70 years
- Low muscle mass –> severe deficit

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8
Q

What is the Patient’s Association Nutrition Checklist?

A

A checklist used in primary care setting/ community
Staff and patient lists

Asks simple questions to screen for malnutrition risk.
Easy to use
Multiple sections
- initial assessment
- gives advice for food and eating
- identifies needs
- signpost other MDT e.g. speech and language therapist, dentist
- social support e.g. having trouble shopping
- follow up steps

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9
Q

Is malnutrition a new problem?

A

No

McWhirter and Pennington, 1994)
- 40% of patients admitted to hospital were undernourished
- Less than 50% of patients had their nutritional status noted in their hospital case notes
- 64% of the patients reassessed on discharge from hospital had lost weight

Kelly et al 2000
- Malnutrition in acute hospital goes unrecognised in 70% if cases

Stratton 2004
- Between 10-60% of adults admitted to hospital are at risk of malnutrition when screened using MUST

Stratton et al 2003
- Between 30-90% of adults and children lose weight in hospital

Elia 2004
- Estimated 5-23% of patients visiting of their GP, 25% patients receiving district nursing care and 16-29% of patients in institutions are malnourished

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10
Q

Why does malnutrition matter?

A
  • Increased fall risk
  • Poor quality of life
  • Muscle wastage –> organ damage
  • Slower wound healing
  • Poor mobility
  • Poor immunity –> increased infections
  • Increased morbidity and mortality
  • Longer hospital stay –> increased cost to NHS
  • Impact on growth and development of children
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11
Q

What is the malnutrition carousel?

A

25-34% of hospital admissions are at risk of malnutrition
|
Longer stay, more complications
More support needed after discharge from hospital
More likely to need care
|
70% of patients weigh less on hospital discharge
|
More GP visits
More prescriptions
More hospital admissions
|
Repeat cycle

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12
Q

What nutritional support is given those with different levels of gastro-intestinal function?

A

Full
- Food first

Partial
- Enteral and/ or parenteral nutrition

None
- Parenteral nutrition

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13
Q

What are the complications of enteral nutrition?

A
  • Blockages –> require flushing
  • Drug/ nutrient interactions –> timings of feed and medications
  • Patients preferences –> patients may not want feed4
  • Site infections
  • Constipation/ diarrhoea –> add in fibre
  • Nausea/ fullness
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14
Q

What monitoring is required during enteral nutrition?

A

5- Patients views –> hunger? feed timings?
- Biochemistry
- Stools/ output
- Tolerance
- Anthropometric measures
- Amount of feed the patient is receiving

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15
Q

What are the types of enteral nutrtion?

A

Nasogastric
Nasoduodenal
Nasojejunal
- temporary (2-4 weeks maximum)
- different tube thickness depending on patients and their circumstances

Gastrostomy
- Percutaneous endoscopic gastrostomy (PEG)
- Radiologically inserted gastrostomy (RIG)
Jejunostomy

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16
Q

What is parenteral nutrition?
Why is is used?

A

Parenteral nutrition bypasses the normal digestion in the GI tract. Nutrition is given directly into the bloodstream through intravenous catheter.

Usage
- Gut rest required e.g. paralytic ileus, anastomotic leaks, small bowel fistulae, gastroparesis
- Bowel obstruction
- Ischaemic bowel
- Nutritional requirements cannot be met using enteral route e.g. short bowel syndrome, hypermetabolic states (multiple trauma)

17
Q

What are the routes of access for parenteral nutrition?
Consequences?

A
  • Peripheral catheters (short term feeding <14 days) –> veins tissues and breaks down causing leakage
  • Central venous catheters –> e.g Hickman line
  • Peripherally inserted central catheters (PICCs) –> short to medium term feeding

High infection rate –> sepsis in central veins/ lines

18
Q

What are come complications of using parenteral nutrition?

A
  • Infection
  • Mechanical complications after line insertion e.g. pneumothorax, air embolism
  • Re-feeding syndrome
  • Electrolyte imbalance
  • Hyperglycaemia
  • Hepatic dysfunction
  • Cell/ tissue atrophy of gastrointestinal tract –> can lead to gastroparesis
19
Q

What is the formulation of parenteral nutrition?

A
  • Three chamber All-in-one-bags (AIO)
  • Ready made non-chamber AiO bags
  • Tailored bags
20
Q

What are the source of nutrients in parenteral nutrients?

A
  • Dual energy –> glucose and fat
  • Nitrogen –> mix of essential and non-essential amino acids
  • Electrolytes
  • Vitamins
  • Minerals
21
Q

Enteral VS Parenteral

A
  • Cheaper
  • More physiological ‘if the gut works use it’
  • Less risk to the patient –> infection, bacteria, translocation