Insulin-Like Growth Factor-1 (IGF-1) with Z-Score

Alphabetical Test listing

Insulin-Like Growth Factor-1 (IGF-1) with Z-Score-13348

  
Insulin-Like Growth Factor-1 (IGF-1) with Z-Score
  
13348
  
LAB13348
  
IFG1
  
IGF-1
  

Results of the insulin-like growth factor-1 assay are to be used in conjunction with other clinical and laboratory data to assist the clinician in the assessment of growth disorders.

  

This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.

  
Serum
  
  
0.5 mL
  
0.3 mL
Note: This volume does not allow for repeat testing
  

Spin

  

Gold serum separator (SST) tube

  
  

Spin and separate

  
  

Refrigerated (preferred) - 7 days

Ambient - 3 days

Frozen - 30 days

  
LabCorp Burlington (010540): R-LC
  
Daily
  
1 - 3 days
  

Immunochemiluminometric assay (ICMA)

  

      AGE       

MALE      

FEMALE

   <1 year    

18 -  79   

14 - 106

    1 year    

20 - 108   

23 - 136

    2 years   

24 - 135   

30 - 163

    3 years   

28 - 148   

34 - 192

    4 years   

32 - 165   

38 - 217

    5 years   

37 - 196   

46 - 243

    6 years   

43 - 229   

56 - 268

    7 years   

50 - 243   

64 - 288

    8 years   

59 - 275   

74 - 337

    9 years   

67 - 315   

81 - 405

   10 years   

75 - 366   

85 - 526

   11 years   

82 - 423   

91 - 610

   12 years   

87 - 519  

110 - 656

   13 years  

101 - 620  

150 - 678

   14 years  

123 - 701  

174 - 656

   15 years  

161 - 760  

156 - 586

   16 years  

171 - 748  

140 - 517

   17 years  

161 - 635  

130 - 471

   18 years  

145 - 506  

117 - 430

   19 years  

122 - 435  

113 - 408

   20 years  

116 - 410  

108 - 384

21-25 years  

109 - 353  

101 - 347

26-30 years  

101 - 307   

91 - 308

31-35 years   

95 - 290   

84 - 281

36-40 years   

90 - 278   

79 - 259

41-45 years    

84 - 270   

74 - 239

46-50 years   

81 - 263   

70 - 225

51-55 years   

74 - 255   

65 - 216

56-60 years   

68 - 247   

60 - 207

61-65 years   

64 - 240   

57 - 202

66-70 years   

59 - 230   

52 - 196

71-75 years   

53 - 222   

48 - 191

76-80 years   

45 - 207   

42 - 185

81-85 years   

40 - 194   

39 - 177

86-90 years   

33 - 176   

34 - 169

91+   years   

Not established

Not established

  
Biotin supplement interference - see patient preparation
  
84305
  
Result 2484-4
  
05/22/2019
  
06/22/2020
  
06/25/2020