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8135_must_6ppaw 13.11

'Malnutrition Universal Screening Tool'
MAG
Malnutrition Advisory Group
A Standing Committee of BAPEN
B A P E N
Advancing Clinical Nutrition
BAPEN is registered charity number 1023927
www.bapen.org.uk
'MUST'
‘MUST’ is a five-step screening tool to identify adults, who are malnourished, at risk of malnutrition
(undernutrition), or obese. It also includes management guidelines which can be used to develop
a care plan.
It is for use in hospitals, community and other care settings and can be used
by all care workers.
This guide contains:
A flow char t showing the 5 steps to use for screening and management
BMI char t
Weight loss tables
Alternative measurements when BMI cannot be obtained by measuring weight and height.
The 5 'MUST' Steps
Step 1
Measure height and weight to get a BMI score using chart provided. If unable to obtain
height and weight, use the alternative procedures shown in this guide.
Step 2
Note percentage unplanned weight loss and score using tables provided.
Step 3
Establish acute disease effect and score.
Step 4
Add scores from steps 1, 2 and 3 together to obtain overall risk of malnutrition.
Step 5
Use management guidelines and/or local policy to develop care plan.
Please refer to The ‘MUST’ Explanator y Booklet for more information when weight and height cannot be measured, and
when screening patient groups in which extra care in interpretation is needed (e.g. those with fluid disturbances,
plaster casts, amputations, critical illness and pregnant or lactating women). The booklet can also be used for training.
See The ‘MUST’ Repor t for suppor ting evidence. Please note that 'MUST' has not been designed to detect
deficiencies or excessive intakes of vitamins and minerals and is of use only in adults.
Step 1 – BMI score (& BMI)
Height (feet and inches)
W
e
i
g
h
t
(
)
s
g
t
o
k
(
n
e
t
s
h
a
i
g
n
e
d
W
p
o
u
n
d
s
)
Height (m)
Note : The black lines denote the exact cut of f points ( 30,20 and 18.5 kg/m2), figures on the char t have been rounded to the nearest whole number.
Step 1
+
Step 2
+
Step 3
BMI score
Weight loss score
Acute disease effect score
Unplanned
BMI kg/m2
Score
weight loss in
If patient is acutely ill and
past 3-6 months
there has been or is likely
>20(>30 Obese)
= 0
%
Score
to be no nutritional
18.5 - 20
= 1
<5
= 0
intake for >5 days
<18.5
= 2
5 -10
= 1
Score 2
>10
= 2
If unable to obtain height and weight,
see reverse for alternative
Step 4
measurements and use of subjective
criteria
Overall risk of malnutrition
Add Scores together to calculate overall risk of malnutrition
Score 0 Low Risk
Score 1 Medium Risk
Score 2 or more High Risk
Step 5
Management guidelines
0
1
2 or more
Low Risk
Medium Risk
High Risk
Routine clinical care
Observe
Treat*
Document dietar y intake
Refer to dietitian, Nutritional
Repeat screening
for 3 days if subject in
Suppor t Team or implement
Hospital – weekly
hospital or care home
local policy
Care Homes – monthly
If improved or adequate
Improve and increase
Community – annually
intake – little clinical
overall nutritional intake
for special groups
concern; if no improvement
Monitor and review care plan
e.g. those >75 yrs
– clinical concern - follow
Hospital – weekly
local policy
Care Home – monthly
Community – monthly
Repeat screening
Hospital – weekly
* Unless detrimental or no benefit
Care Home – at least monthly
is expected from nutritional
Community – at least ever y
suppor t e.g. imminent death.
2-3 months
All risk categories:
Obesity:
Treat underlying condition and provide help and
Record presence of obesity. For those with
advice on food choices, eating and drinking when
underlying conditions, these are generally
necessar y.
controlled before the treatment of obesity.
Record malnutrition risk categor y.
Record need for special diets and follow local policy.
Re-assess subjects identified at risk as they move through care settings
See The ‘MUST’ Explanator y Booklet for fur ther details and The ‘MUST’ Repor t for suppor ting evidence.
Step 2 – Weight loss score
SCORE 0
SCORE 1
SCORE 2
SCORE 0
SCORE 1
SCORE 2
Wt Loss < 5% Wt Loss 5-10%
Wt Loss > 10%
Wt Loss < 5% Wt Loss 5-10% Wt Loss > 10%
3
34 kg
< 1.70
1.70 – 3.40
>3.40
5st 4lb
<4lb
4lb – 7lb
>7lb
36 kg
< 1.80
1.80 – 3.60
>3.60
5st 7lb
<4lb
4lb – 8lb
>8lb
38 kg
< 1.90
1.90 – 3.80
>3.80
5st 11lb
<4lb
4lb – 8lb
>8lb
40 kg
< 2.00
2.00 – 4.00
>4.00
6st
<4lb
4lb – 8lb
>8lb
42 kg
< 2.10
2.10 – 4.20
>4.20
6st 4lb
<4lb
4lb – 9lb
>9lb
44 kg
< 2.20
2.20 – 4.40
>4.40
6st 7lb
<5lb
5lb – 9lb
>9lb
46 kg
< 2.30
2.30 – 4.60
>4.60
6st 11lb
<5lb
5lb – 10lb
>10lb
48 kg
<2.40
2.40 – 4.80
>4.80
7st
<5lb
5lb – 10lb
>10lb
50 kg
< 2.50
2.50 – 5.00
>5.00
7st 4lb
<5lb
5lb – 10lb
>10lb
52 kg
< 2.60
2.60 – 5.20
>5.20
7st 7lb
<5lb
5lb – 11lb
>11lb
54 kg
< 2.70
2.70 – 5.40
>5.40
7st 11lb
<5lb
5lb – 11lb
>11lb
56 kg
< 2.80
2.80 – 5.60
>5.60
8st
<6lb
6lb – 11lb
>11lb
58 kg
<2.90
2.90 – 5.80
>5.80
8st 4lb
<6lb
6lb – 12lb
>12lb
60 kg
< 3.00
3.00 – 6.00
>6.00
8st 7lb
<6lb
6lb – 12lb
>12lb
62 kg
< 3.10
3.10 – 6.20
>6.20
8st 11lb
<6lb
6lb – 12lb
>12lb
)
64 kg
<3.20
3.20 – 6.40
>6.40
9st
<6lb
6lb – 13lb
>13lb
)
l
b
g
66 kg
< 3.30
3.30 – 6.60
>6.60
t
9st 4lb
<7lb
7lb – 13lb
>13lb
k
s
(
68 kg
< 3.40
3.40 – 6.80
>6.80
(
9st 7lb
<7lb
7lb – 13lb
>13lb
s
70 kg
< 3.50
3.50 – 7.00
>7.00
s
s
9st 11lb
<7lb
7lb – 1st 0lb
>1st 0lb
s
72 kg
< 3.60
3.60 – 7.20
>7.20
l
o
l
o
10st
<7lb
7lb – 1st 0lb
>1st 0lb
t
74 kg
< 3.70
3.70 – 7.40
>7.40
t
10st 4lb
<7lb
7lb – 1st 0lb
>1st 0lb
h
h
76 kg
<3.80
3.80 – 7.60
>7.60
10st 7lb
<7lb
7lb – 1st 1lb
i
g
>1st 1lb
i
g
e
78 kg
<3.90
3.90 – 7.80
>7.80
e
10st 11lb
<8lb
8lb – 1st 1lb
>1st 1lb
w
w
80 kg
<4.00
4.00 – 8.00
>8.00
11st
<8lb
8lb – 1st 1lb
>1st 1lb
e
e
r
82 kg
<4.10
4.10 – 8.20
>8.20
r
11st 4lb
<8lb
8lb – 1st 2lb
>1st 2lb
o
o
f
84 kg
<4.20
4.20 – 8.40
>8.40
f
e
11st 7lb
<8lb
8lb – 1st 2lb
>1st 2lb
e
b
86 kg
<4.30
4.30 – 8.60
>8.60
b
11st 11lb
<8lb
8lb – 1st 3lb
>1st 3lb
t
t
88 kg
<4.40
4.40 – 8.80
>8.80
h
h
12st
<8lb
8lb – 1st 3lb
>1st 3lb
i
g
90 kg
<4.50
4.50 – 9.00
>9.00
i
g
12st 4lb
<9lb
9lb – 1st 3lb
>1st 3lb
e
e
92 kg
<4.60
4.60 – 9.20
>9.20
12st 7lb
<9lb
9lb – 1st 4lb
>1st 4lb
W
W
94 kg
<4.70
4.70 – 9.40
>9.40
12st 11lb
<9lb
9lb – 1st 4lb
>1st 4lb
96 kg
<4.80
4.80 – 9.60
>9.60
13st
<9lb
9lb – 1st 4lb
>1st 4lb
98 kg
<4.90
4.90 – 9.80
>9.80
13st 4lb
<9lb
9lb – 1st 5lb
>1st 5lb
100 kg
<5.00
5.00 – 10.00
>10.00
13st 7lb
<9lb
9lb – 1st 5lb
>1st 5lb
102 kg
<5.10
5.10 – 10.20
>10.20
13st 11lb
<10lb
10lb – 1st 5lb
>1st 5lb
104 kg
<5.20
5.20 – 10.40
>10.40
14st
<10lb
10lb – 1st 6lb
>1st 6lb
106 kg
<5.30
5.30 – 10.60
>10.60
14st 4lb
<10lb
10lb – 1st 6lb
>1st 6lb
108 kg
<5.40
5.40 – 10.80
>10.80
14st 7lb
<10lb
10lb – 1st 6lb
>1st 6lb
110 kg
<5.50
5.50 – 11.00
>11.00
14st 11lb
<10lb
10lb – 1st 7lb
>1st 7lb
112 kg
<5.60
5.60 – 11.20
>11.20
15st
<11lb
11lb – 1st 7lb
>1st 7lb
114 kg
<5.70
5.70 – 11.40
>11.40
15st 4lb
<11lb
11lb – 1st 7lb
>1st 7lb
116 kg
<5.80
5.80 – 11.60
>11.60
15st 7lb
<11lb
11lb – 1st 8lb
>1st 8lb
118 kg
<5.90
5.90 – 11.80
>11.80
15st 11lb
<11lb
11lb – 1st 8lb
>1st 8lb
120 kg
<6.00
6.00 – 12.00
>12.00
16st
<11lb
11lb – 1st 8lb
>1st 8lb
122 kg
<6.10
6.10 – 12.20
>12.20
16st 4lb
<11lb
11lb – 1st 9lb
>1st 9lb
124 kg
<6.20
6.20 – 12.40
>12.40
16st 7lb
<12lb
12lb – 1st 9lb
>1st 9lb
126 kg
<6.30
6.30 – 12.60
>12.60
Alternative measurements and considerations
Step 1: BMI (body mass index)
If height cannot be measured
Use recently documented or self-repor ted height (if reliable and realistic).
If the subject does not know or is unable to repor t their height, use one of the alternative
measurements to estimate height (ulna, knee height or demispan).
If height & weight cannot be obtained
Use mid upper arm circumference (MUAC) measurement to estimate BMI categor y.
Step 2: Recent unplanned weight loss
If recent weight loss cannot be calculated, use self-repor ted weight loss (if reliable and realistic).
Subjective criteria
If height, weight or BMI cannot be obtained, the following criteria which relate to them can assist your
professional judgement of the subject’s nutritional risk categor y. Please note, use of these criteria is
not designed to assign a score.
1. BMI
Clinical impression – thin, acceptable weight, over weight. Obvious wasting (ver y thin) and obesity
(ver y over weight) can also be noted.
2. Unplanned weight loss
Clothes and/or jeweller y have become loose fitting (weight loss).
Histor y of decreased food intake, reduced appetite or swallowing problems over 3-6 months and
underlying disease or psycho-social/physical disabilities likely to cause weight loss.
3. Acute disease effect
No nutritional intake or likelihood of no intake for more than 5 days.
Fur ther details on taking alternative measurements, special circumstances and subjective criteria can
be found in The ‘MUST’ Explanator y Booklet. A copy can be downloaded at www.bapen.org.uk or
purchased from the BAPEN of fice. The full evidence-base for ‘MUST’ is contained in The ‘MUST’ Repor t
and is also available for purchase from the BAPEN of fice.
BAPEN Of fice, Secure Hold Business Centre, Studley Road, Redditch, Worcs, B98 7LG. Tel: 01527 457 850. Fax: 01527 458 718.
bapen@sovereignconference.co.uk
BAPEN is registered charity number 1023927.
www.bapen.org.uk
© BAPEN 2003
ISBN 1 899467 90 4
Price £2.00
All rights reser ved. This document may be photocopied for dissemination and training purposes as long as the source
is credited and recognised.
Copy may be reproduced for the purposes of publicity and promotion. Written permission must be sought from BAPEN if reproduction or
adaptation is required. If used for commercial gain a licence fee may be required.
© BAPEN. First published May 2004 by MAG the Malnutrition Advisor y Group, a Standing Committee of BAPEN. Reviewed and reprinted with minor changes March 2008
‘MUST’ is suppor ted by the British Dietetic Association, the Royal College of Nursing and the Registered Nursing Home Association.
Alternative measurements: instructions and tables
If height cannot be obtained, use length of forearm (ulna) to calculate height using tables below.
(See The ‘MUST’ Explanator y Booklet for details of other alternative measurements (knee height and
demispan) that can also be used to estimate height).
Estimating height from ulna length
Measure between the point of the elbow
(olecranon process) and the midpoint of the prominent
bone of the wrist (styloid process) (left side if possible).
T
H
) Men(<65 years)
1.94
1.93
1.91
1.89
1.87
1.85
1.84
1.82
1.80
1.78
1.76
1.75
1.73
1.71
I
G
m
E
( Men(>65years)
1.87
1.86
1.84
1.82
1.81
1.79
1.78
1.76
1.75
1.73
1.71
1.70
H
1.68
1.67
Ulna length (cm)
32.0
31. 5
31.0
30.5
30.0
29. 5
9.0
2
28.5
28.0
27.5
27.0
26.5
26.0
25.5
T
H
Women (<65 years)
1.84
1.83
1.81
1.80
1.79
1.77
1.76
1.75
1.73
1.72
1.70
1.69
)
1.68
1.66
I
G
m
E
( Women (>65 years) 1.84 1.83
1.81
1.79
1.78
1.76
1.75
1.73
1.71
1.70
1.68
1.66
1.65
1.63
H
T
H
) Men(<65 years)
1.69
1.67
1.66
1.64
1.62
1.60
1.58
1.57
1.55
1.53
1.51
1.49
1.48
1.46
I
G
m
E
( Men(>65years)
1.65
1.63
1.62
1.60
1.59
1.57
1.56
1.54
1.52
1.51
1.49
1.48
1.46
1.45
H
Ulna length (cm)
25.0
24.5
4.0
2
23. 5
3.0
2
22.5
22.0
21.5
21.0
20. 5
20.0
19. 5
9.0
1
18.5
T
Women (<65 years)
1.65
1.63
1.62
1.61
1.59
1.58
1.56
1.55
1.54
1.52
1.51
1.50
1.48
1.47
H
)
I
G
m
(
E
Women (>65 years)
1.61
1.60
1.58
1.56
1.55
1.53
1.52
1.50
1.48
1.47
1.45
1.44
1.42
1.40
H
Estimating BMI category from mid upper arm circumference (MUAC)
The subject’s left arm should be bent at the elbow at a 90 degree angle,
with the upper arm held parallel to the side of the body. Measure the
distance between the bony protrusion on the shoulder (acromion) and
the point of the elbow (olecranon process). Mark the mid-point.
Ask the subject to let arm hang loose and measure around
the upper arm at the mid-point, making sure that the tape
measure is snug but not tight.
If MUAC is < 23.5 cm, BMI is likely to be <20 kg/m2.
If MUAC is > 32.0 cm, BMI is likely to be >30 kg/m2.
The use of MUAC provides a general indication of BMI and is not designed to generate an actual score for
use with ‘MUST’. For fur ther information on use of MUAC please refer to The ‘MUST’ Explanator y Booklet.