Patient selection: hospitalized patient with anorexia nervosa.
Parameters:
(1) body mass index (BMI) in kg per sq m)
(2) rate of weight loss in kg per week
(3) blood pressure in mm Hg
(4) postural drop in blood pressure in mm Hg
(5) pulse rate in beats per minute
(6) peripheral cyanosis
(7) stand up, squat test
(8) temperature in °C
(9) white blood cell count in 10^9/L
(10) absolute neutrophil count in 10^9/L
(11) hemoglobin in g/dL
(12) platelet count in 10^9/L
(13) serum potassium in mmol/L
(14) serum sodium in mmol/L
(15) serum phosphate in mmol/L
(16) QTc interval in milliseconds
(17) cardiac arrhythmia
|
Parameter
|
Moderate Risk
|
High Risk
|
|
BMI
|
13 to 14.9
|
< 13
|
|
rate of weight loss
|
0.51 to 1 kg/wk
|
> 1 kg/wk
|
|
blood pressure in mm Hg
|
80 to 89 systolic; 50 to 59 diastolic
|
< 80/50
|
|
postural drop in blood pressure
|
11 to 20
|
> 20
|
|
pulse rate
|
40 to 49
|
< 40
|
|
peripheral cyanosis
|
NA
|
Yes
|
|
stand up, squat test
|
able to get up with difficulty
|
unable to get up or needs hands
|
|
temperature
|
34.5 to 34.9°C
|
< 34.5°C
|
|
WBC count
|
2 to < LLN
|
< 2
|
|
absolute neutrophil count
|
1 to < LLN
|
< 1
|
|
hemoglobin
|
9 to < LLN
|
< 9
|
|
platelet count
|
110 to < LLN
|
< 110
|
|
serum potassium
|
2.5 to < LLN
|
< 2.5
|
|
serum sodium
|
130 to < LLN
|
< 130
|
|
serum phosphate
|
0.5 to < LLN
|
< 0.5
|
|
QTc interval
|
NA
|
> 450 ms
|
|
cardiac arrhythmias
|
NA
|
Yes
|
total number of moderate risk findings =
= SUM(number of moderate risk findings)
total number of high risk findings =
= SUM(number of high risk findings)
total number of findings = 17 =
= SUM(low risk + moderate risk + high-risk findings)
Interpretation:
• minimum number of moderate risk findings: 0
• maximum number of moderate risk findings: 17
• minimum number of high-risk findings: 0
• maximum number of high-risk findings: 17
