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HelpTest Code CRDPP Creatine Disorders Panel, Plasma
Ordering Guidance
For additional diagnostic testing, consider ordering CRDPU / Creatine Disorders Panel, Random, Urine.
Additional Testing Requirements
To diagnose all creatine deficiency syndromes, order CRDPU / Creatine Disorders Panel, Random, Urine in addition to this test.
Necessary Information
Patient's age and sex are required.
Specimen Required
Collection Container/Tube:
Preferred: Lavender top (EDTA)
Acceptable: Green top (sodium heparin), yellow top (ACD)
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions: Centrifuge and aliquot plasma into plastic vial. Send plasma frozen.
Genetics Test Information
Depletion of cerebral creatine occurs in all 3 types of creatine deficiency syndromes (CDS): arginine:glycine amidinotransferase deficiency, guanidinoacetate methyltransferase deficiency, and creatine transporter deficiency.
Measurement of guanidinoacetate, creatine, and creatinine, along with associated analyte ratios in plasma and urine, aids in distinguishing the types of creatine deficiency syndromes.
Treatment with oral creatine supplementation is effective in some types of CDS.
Creatine supplementation may impact reliability of test results.
Specimen Type
PlasmaSpecimen Minimum Volume
0.1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma | Frozen (preferred) | 14 days | |
| Refrigerated | 7 days | ||
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Reference Values
|
Creatine Disorders Panel Reference Values |
||||||||||||
|
|
≤11 Months |
12-23 Months |
24-35 Months |
|||||||||
|
Female |
Male |
Female |
Male |
Female |
Male |
|||||||
|
Creatine |
38.6-96.8 |
39.0-97.0 |
38.2-96.5 |
38.6-96.5 |
37.7-96.0 |
38.2-96.0 |
||||||
|
Creatinine |
27.6-35.9 |
27.6-35.2 |
27.6-36.5 |
27.6-35.5 |
27.6-37.1 |
27.6-36.0 |
||||||
|
Guanidinoacetate |
0.7-2.0 |
0.7-2.1 |
0.7-2.0 |
0.7-2.1 |
0.7-2.0 |
0.7-2.1 |
||||||
|
Creatine/ |
≤3.07 |
≤3.60 |
≤3.02 |
≤3.54 |
≤2.96 |
≤3.48 |
||||||
|
Guanidinoacetate/ |
≤0.040 |
≤0.040 |
≤0.042 |
≤0.040 |
≤0.043 |
≤0.042 |
||||||
|
Guanidinoacetate/ |
≤0.051 |
≤0.081 |
≤0.051 |
≤0.080 |
≤0.051 |
≤0.079 |
||||||
|
|
||||||||||||
|
|
3 Years |
4 Years |
5 Years |
|||||||||
|
Female |
Male |
Female |
Male |
Female |
Male |
|||||||
|
Creatine |
37.1-95.5 |
37.7-95.3 |
36.0-94.4 |
36.8-94.1 |
34.6-93.2 |
35.6-92.7 |
||||||
|
Creatinine |
27.6-37.9 |
27.7-36.9 |
27.6-39.3 |
27.7-38.2 |
27.6-40.9 |
27.8-39.9 |
||||||
|
Guanidinoacetate |
0.7-2.1 |
0.7-2.2 |
0.7-2.1 |
0.7-2.2 |
0.7-2.1 |
0.7-2.2 |
||||||
|
Creatine/ |
≤2.89 |
≤3.40 |
≤2.77 |
≤3.26 |
≤2.64 |
≤3.09 |
||||||
|
Guanidinoacetate/ |
≤0.045 |
≤0.043 |
≤0.049 |
≤0.045 |
≤0.053 |
≤0.049 |
||||||
|
Guanidinoacetate/ |
≤0.050 |
≤0.077 |
≤0.050 |
≤0.075 |
≤0.049 |
≤0.072 |
||||||
|
|
6 Years |
7 Years |
8 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
33.0-91.7 |
34.3-91.0 |
31.2-90.0 |
32.7-89.2 |
29.2-88.1 |
31.0-87.3 |
|
Creatinine |
27.6-42.8 |
28.0-41.9 |
27.7-44.9 |
28.3-44.3 |
27.8-47.0 |
28.8-47.1 |
|
Guanidinoacetate |
0.7-2.1 |
0.7-2.3 |
0.7-2.1 |
0.8-2.3 |
0.8-2.1 |
0.8-2.4 |
|
Creatine/ |
≤2.49 |
≤2.91 |
≤2.33 |
≤2.70 |
≤2.17 |
≤2.49 |
|
Guanidinoacetate/ |
≤0.058 |
≤0.053 |
≤0.063 |
≤0.058 |
≤0.069 |
≤0.064 |
|
Guanidinoacetate/ |
≤0.049 |
≤0.069 |
≤0.048 |
≤0.066 |
≤0.047 |
≤0.063 |
|
|
9 Years |
10 Years |
11 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
27.2-85.9 |
29.3-85.2 |
25.2-83.7 |
27.4-83.1 |
23.4-81.3 |
25.7-80.9 |
|
Creatinine |
28.0-49.3 |
29.5-50.1 |
28.2-51.5 |
30.6-53.6 |
28.4-53.6 |
32.0-57.2 |
|
Guanidinoacetate |
0.8-2.2 |
0.8-2.5 |
0.9-2.2 |
0.9-2.6 |
0.9-2.2 |
1.0-2.6 |
|
Creatine/ |
≤2.02 |
≤2.28 |
≤1.86 |
≤2.07 |
≤1.72 |
≤1.87 |
|
Guanidinoacetate/ |
≤0.075 |
≤0.070 |
≤0.081 |
≤0.078 |
≤0.087 |
≤0.085 |
|
Guanidinoacetate/ |
≤0.047 |
≤0.060 |
≤0.046 |
≤0.057 |
≤0.045 |
≤0.055 |
|
|
12 Years |
13 Years |
14 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
21.7-78.7 |
23.9-78.6 |
20.3-76.2 |
22.3-76.2 |
19.0-73.6 |
20.8-73.8 |
|
Creatinine |
28.7-55.7 |
33.8-61.0 |
29.1-57.7 |
35.9-64.8 |
29.5-59.5 |
38.1-68.5 |
|
Guanidinoacetate |
0.9-2.2 |
1.0-2.7 |
1.0-2.3 |
1.1-2.8 |
1.0-2.3 |
1.1-2.9 |
|
Creatine/ |
≤1.58 |
≤1.68 |
≤1.45 |
≤1.50 |
≤1.33 |
≤1.34 |
|
Guanidinoacetate/ |
≤0.092 |
≤0.093 |
≤0.097 |
≤0.101 |
≤0.101 |
≤0.109 |
|
Guanidinoacetate/ |
≤0.044 |
≤0.053 |
≤0.043 |
≤0.051 |
≤0.042 |
≤0.050 |
|
|
15 Years |
16 Years |
17 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
18.1-71.1 |
19.5-71.2 |
17.4-68.7 |
18.4-68.6 |
16.9-66.5 |
17.4-65.9 |
|
Creatinine |
29.9-61.3 |
40.4-71.9 |
30.4-62.9 |
42.4-75.0 |
30.9-64.4 |
44.2-77.6 |
|
Guanidinoacetate |
1.0-2.3 |
1.2-2.9 |
1.1-2.3 |
1.3-3.0 |
1.1-2.3 |
1.3-3.1 |
|
Creatine/ |
≤1.22 |
≤1.20 |
≤1.12 |
≤1.07 |
≤1.04 |
≤0.97 |
|
Guanidinoacetate/ |
≤0.104 |
≤0.117 |
≤0.107 |
≤0.125 |
≤0.109 |
≤0.132 |
|
Guanidinoacetate/ |
≤0.041 |
≤0.049 |
≤0.040 |
≤0.048 |
≤0.040 |
≤0.048 |
|
|
18 Years |
19 Years |
20 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
16.7-64.4 |
16.6-63.3 |
16.6-62.7 |
15.8-60.7 |
16.5-61.1 |
15.2-58.3 |
|
Creatinine |
31.3-65.8 |
45.6-80.0 |
31.8-67.0 |
46.7-82.0 |
32.2-68.2 |
47.4-83.9 |
|
Guanidinoacetate |
1.1-2.4 |
1.4-3.1 |
1.1-2.4 |
1.4-3.2 |
1.1-2.4 |
1.5-3.2 |
|
Creatine/ |
≤0.98 |
≤0.87 |
≤0.93 |
≤0.80 |
≤0.89 |
≤0.73 |
|
Guanidinoacetate/ |
≤0.111 |
≤0.139 |
≤0.112 |
≤0.145 |
≤0.113 |
≤0.150 |
|
Guanidinoacetate/ |
≤0.039 |
≤0.047 |
≤0.038 |
≤0.047 |
≤0.038 |
≤0.046 |
|
|
21 Years |
22 Years |
23 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
16.6-59.8 |
14.7-56.0 |
16.6-58.8 |
14.2-54.0 |
16.7-57.9 |
13.7-52.2 |
|
Creatinine |
32.5-69.2 |
47.9-85.6 |
 32.8-70.2 |
48.2-87.2 |
 33.1-71.1 |
48.4-88.8 |
|
Guanidinoacetate |
1.1-2.4 |
1.5-3.2 |
1.1-2.5 |
1.5-3.3 |
1.1-2.5 |
1.6-3.3 |
|
Creatine/ |
≤0.87 |
≤0.68 |
≤0.85 |
≤0.64 |
≤0.84 |
≤0.61 |
|
Guanidinoacetate/ |
≤0.114 |
≤0.156 |
≤0.115 |
≤0.161 |
≤0.116 |
≤0.165 |
|
Guanidinoacetate/ |
≤0.037 |
≤0.045 |
≤0.037 |
≤0.045 |
≤0.037 |
≤0.044 |
|
|
24 Years |
25 Years |
26 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
16.7-57.2 |
13.3-50.6 |
16.7-56.5 |
12.9-49.3 |
16.7-56.0 |
12.5-48.1 |
|
Creatinine |
33.3-71.9 |
48.6-90.2 |
33.6-72.8 |
48.7-91.5 |
33.7-73.6 |
48.9-92.7 |
|
Guanidinoacetate |
1.1-2.5 |
1.6-3.3 |
1.1-2.5 |
1.6-3.3 |
1.1-2.6 |
1.6-3.4 |
|
Creatine/ |
≤0.84 |
≤0.58 |
≤0.84 |
≤0.56 |
≤0.84 |
≤0.54 |
|
Guanidinoacetate/ |
≤0.116 |
≤0.170 |
≤0.117 |
≤0.174 |
≤0.118 |
≤0.179 |
|
Guanidinoacetate/ |
≤0.036 |
≤0.043 |
≤0.036 |
≤0.043 |
≤0.036 |
≤0.042 |
|
|
27 Years |
28 Years |
29 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
16.7-55.5 |
12.1-47.1 |
16.6-55.1 |
11.8-46.3 |
16.5-54.7 |
11.5-45.4 |
|
Creatinine |
33.9-74.4 |
49.0-93.7 |
34.1-75.2 |
49.1-94.5 |
34.2-76.0 |
49.2-95.3 |
|
Guanidinoacetate |
1.1-2.6 |
1.6-3.4 |
1.1-2.6 |
1.6-3.4 |
1.1-2.6 |
1.6-3.4 |
|
Creatine/ |
≤0.84 |
≤0.52 |
≤0.84 |
≤0.51 |
≤0.84 |
≤0.49 |
|
Guanidinoacetate/ |
≤0.118 |
≤0.182 |
≤0.119 |
≤0.186 |
≤0.119 |
≤0.188 |
|
Guanidinoacetate/ |
≤0.036 |
≤0.042 |
≤0.036 |
≤0.041 |
≤0.036 |
≤0.041 |
|
|
30 Years |
31 Years |
32 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
16.4-54.2 |
11.3-44.7 |
16.4-53.8 |
11.1-43.9 |
16.3-53.4 |
11.0-43.2 |
|
Creatinine |
34.4-76.8 |
49.3-96.0 |
34.6-77.5 |
49.3-96.7 |
34.7-78.2 |
49.4-97.4 |
|
Guanidinoacetate |
1.2-2.7 |
1.6-3.5 |
1.2-2.7 |
1.6-3.5 |
1.2-2.7 |
1.6-3.5 |
|
Creatine/ |
≤0.84 |
≤0.48 |
≤0.83 |
≤0.47 |
≤0.83 |
≤0.46 |
|
Guanidinoacetate/ |
≤0.120 |
≤0.190 |
≤0.120 |
≤0.192 |
≤0.119 |
≤0.192 |
|
Guanidinoacetate/ |
≤0.036 |
≤0.041 |
≤0.036 |
≤0.042 |
≤0.037 |
≤0.042 |
|
|
33 Years |
34 Years |
35 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
16.3-53.0 |
10.9-42.5 |
16.4-52.7 |
10.8-41.7 |
16.4-52.3 |
10.7-41.0 |
|
Creatinine |
34.9-78.8 |
49.4-98.0 |
35.1-79.4 |
49.5-98.6 |
35.3-79.9 |
49.5-99.2 |
|
Guanidinoacetate |
1.2-2.8 |
1.6-3.5 |
1.2-2.8 |
1.6-3.5 |
1.2-2.8 |
1.6-3.4 |
|
Creatine/ |
≤0.82 |
≤0.45 |
≤0.82 |
≤0.45 |
≤0.82 |
≤0.44 |
|
Guanidinoacetate/ |
≤0.119 |
≤0.192 |
≤0.118 |
≤0.191 |
≤0.118 |
≤0.189 |
|
Guanidinoacetate/ |
≤0.037 |
≤0.042 |
≤0.037 |
≤0.042 |
≤0.037 |
≤0.042 |
|
|
36 Years |
37 Years |
38 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
16.5-52.0 |
10.7-40.2 |
16.7-51.6 |
10.6-39.5 |
16.9-51.3 |
10.6-38.9 |
|
Creatinine |
35.4-80.3 |
49.5-99.8 |
35.6-80.7 |
49.5-100.3 |
35.8-81.0 |
49.6-100.8 |
|
Guanidinoacetate |
1.2-2.8 |
1.6-3.4 |
1.2-2.8 |
1.6-3.4 |
1.2-2.9 |
1.6-3.4 |
|
Creatine/ |
≤0.82 |
≤0.44 |
≤0.82 |
≤0.44 |
≤0.83 |
≤0.44 |
|
Guanidinoacetate/ |
≤0.117 |
≤0.187 |
≤0.115 |
≤0.184 |
≤0.114 |
≤0.182 |
|
Guanidinoacetate/ |
≤0.037 |
≤0.042 |
≤0.037 |
≤0.042 |
≤0.036 |
≤0.042 |
|
|
39 Years |
40 Years |
41 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
17.1-51.1 |
10.6-38.2 |
17.3-50.9 |
10.7-37.7 |
17.5-50.8 |
10.7-37.2 |
|
Creatinine |
35.9-81.4 |
49.6-101.3 |
36.0-81.6 |
49.6-101.7 |
36.1-81.9 |
49.7-102.1 |
|
Guanidinoacetate |
1.2-2.9 |
1.6-3.4 |
1.2-2.9 |
1.6-3.4 |
1.2-2.9 |
1.6-3.4 |
|
Creatine/ |
≤0.83 |
≤0.44 |
≤0.83 |
≤0.44 |
≤0.84 |
≤0.44 |
|
Guanidinoacetate/ |
≤0.113 |
≤0.179 |
≤0.111 |
≤0.176 |
≤0.110 |
≤0.174 |
|
Guanidinoacetate/ |
≤0.036 |
≤0.041 |
≤0.036 |
≤0.041 |
≤0.036 |
≤0.040 |
|
|
42 Years |
43 Years |
44 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
17.7-50.8 |
10.8-36.7 |
17.8-50.8 |
10.9-36.3 |
17.8-50.9 |
11.0-36.0 |
|
Creatinine |
36.2-82.1 |
49.7-102.5 |
36.3-82.4 |
49.8-102.8 |
36.4-82.6 |
49.8-103.1 |
|
Guanidinoacetate |
1.2-3.0 |
1.6-3.3 |
1.2-3.0 |
1.6-3.3 |
1.2-3.0 |
1.6-3.3 |
|
Creatine/ |
≤0.84 |
≤0.44 |
≤0.84 |
≤0.43 |
≤0.84 |
≤0.43 |
|
Guanidinoacetate/ |
≤0.109 |
≤0.172 |
≤0.108 |
≤0.171 |
≤0.107 |
≤0.170 |
|
Guanidinoacetate/ |
≤0.036 |
≤0.039 |
≤0.036 |
≤0.039 |
≤0.036 |
≤0.038 |
|
|
45 Years |
46 Years |
47 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
17.7-51.0 |
11.1-35.6 |
17.6-51.2 |
11.2-35.3 |
17.4-51.4 |
11.3-35.1 |
|
Creatinine |
36.4-82.8 |
49.9-103.4 |
36.5-83.0 |
49.9-103.6 |
36.5-83.2 |
49.9-103.9 |
|
Guanidinoacetate |
1.2-3.0 |
1.7-3.3 |
1.2-3.1 |
1.7-3.3 |
1.2-3.1 |
1.7-3.3 |
|
Creatine/ |
≤0.84 |
≤0.42 |
≤0.83 |
≤0.41 |
≤0.83 |
≤0.40 |
|
Guanidinoacetate/ |
≤0.106 |
≤0.169 |
≤0.106 |
≤0.168 |
≤0.106 |
≤0.167 |
|
Guanidinoacetate/ |
≤0.037 |
≤0.038 |
≤0.037 |
≤0.037 |
≤0.037 |
≤0.037 |
|
|
48 Years |
49 Years |
50 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
17.2-51.7 |
11.5-34.8 |
17.1-51.9 |
11.6-34.6 |
17.0-52.1 |
11.7-34.4 |
|
Creatinine |
36.6-83.4 |
49.9-104.1 |
36.6-83.5 |
49.9-104.2 |
36.7-83.7 |
49.9-104.4 |
|
Guanidinoacetate |
1.2-3.1 |
1.7-3.3 |
1.2-3.1 |
1.7-3.3 |
1.2-3.1 |
1.7-3.3 |
|
Creatine/ |
≤0.82 |
≤0.39 |
≤0.82 |
≤0.38 |
≤0.82 |
≤0.38 |
|
Guanidinoacetate/ |
≤0.106 |
≤0.166 |
≤0.106 |
≤0.164 |
≤0.105 |
≤0.163 |
|
Guanidinoacetate/ |
≤0.038 |
≤0.036 |
≤0.038 |
≤0.036 |
≤0.039 |
≤0.036 |
|
|
51 Years |
52 Years |
53 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
17.0-52.2 |
11.9-34.3 |
17.1-52.3 |
12.0-34.3 |
17.3-52.4 |
12.2-34.3 |
|
Creatinine |
36.8-83.9 |
49.8-104.6 |
36.8-84.0 |
49.8-104.8 |
36.9-84.2 |
49.8-104.9 |
|
Guanidinoacetate |
1.2-3.1 |
1.7-3.3 |
1.2-3.1 |
1.7-3.2 |
1.2-3.1 |
1.6-3.2 |
|
Creatine/ |
≤0.82 |
≤0.37 |
≤0.82 |
≤0.37 |
≤0.82 |
≤0.38 |
|
Guanidinoacetate/ |
≤0.105 |
≤0.161 |
≤0.104 |
≤0.159 |
≤0.103 |
≤0.157 |
|
Guanidinoacetate/ |
≤0.039 |
≤0.036 |
≤0.039 |
≤0.036 |
≤0.039 |
≤0.036 |
|
|
54 Years |
55 Years |
56 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
17.6-52.5 |
12.4-34.3 |
18.1-52.6 |
12.5-34.4 |
18.6-52.7 |
12.6-34.4 |
|
Creatinine |
37.0-84.4 |
49.8-105.0 |
37.1-84.5 |
49.8-105.2 |
37.2-84.7 |
49.8-105.3 |
|
Guanidinoacetate |
1.2-3.1 |
1.6-3.2 |
1.2-3.1 |
1.6-3.2 |
1.2-3.1 |
1.6-3.2 |
|
Creatine/ |
≤0.82 |
≤0.38 |
≤0.83 |
≤0.39 |
≤0.84 |
≤0.40 |
|
Guanidinoacetate/ |
≤0.102 |
≤0.155 |
≤0.100 |
≤0.154 |
≤0.099 |
≤0.152 |
|
Guanidinoacetate/ |
≤0.039 |
≤0.036 |
≤0.039 |
≤0.036 |
≤0.039 |
≤0.036 |
|
|
57 Years |
58 Years |
59 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
19.2-52.9 |
12.7-34.4 |
19.9-53.1 |
12.8-34.3 |
20.5-53.3 |
12.8-34.2 |
|
Creatinine |
37.3-84.9 |
49.8-105.4 |
37.4-85.1 |
49.8-105.5 |
37.6-85.2 |
49.8-105.6 |
|
Guanidinoacetate |
1.2-3.0 |
1.6-3.2 |
1.3-3.0 |
1.6-3.2 |
1.3-3.0 |
1.6-3.2 |
|
Creatine/ |
≤0.84 |
≤0.40 |
≤0.85 |
≤0.41 |
≤0.86 |
≤0.42 |
|
Guanidinoacetate/ |
≤0.098 |
≤0.151 |
≤0.096 |
≤0.151 |
≤0.095 |
≤0.150 |
|
Guanidinoacetate/ |
≤0.039 |
≤0.036 |
≤0.038 |
≤0.036 |
≤0.038 |
≤0.036 |
|
|
60 Years |
61 Years |
62 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
21.0-53.6 |
12.8-34.1 |
21.5-53.9 |
12.7-34.0 |
21.9-54.2 |
12.6-33.9 |
|
Creatinine |
37.8-85.4 |
49.9-105.7 |
38.0-85.5 |
49.9-105.9 |
38.3-85.7 |
49.9-106.0 |
|
Guanidinoacetate |
1.3-2.9 |
1.6-3.2 |
1.3-2.9 |
1.6-3.1 |
1.3-2.9 |
1.6-3.1 |
|
Creatine/ |
≤0.87 |
≤0.43 |
≤0.87 |
≤0.44 |
≤0.88 |
≤0.44 |
|
Guanidinoacetate/ |
≤0.094 |
≤0.150 |
≤0.093 |
≤0.150 |
≤0.093 |
≤0.150 |
|
Guanidinoacetate/ |
≤0.037 |
≤0.036 |
≤0.036 |
≤0.035 |
≤0.036 |
≤0.035 |
|
|
63 Years |
64 Years |
65 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
22.2-54.6 |
12.4-33.7 |
22.3-55.0 |
12.3-33.6 |
22.5-55.5 |
12.2-33.4 |
|
Creatinine |
38.7-85.8 |
50.0-106.1 |
39.1-85.9 |
50.0-106.3 |
39.6-86.1 |
50.1-106.4 |
|
Guanidinoacetate |
1.3-2.8 |
1.6-3.1 |
1.3-2.8 |
1.6-3.1 |
1.3-2.8 |
1.6-3.1 |
|
Creatine/ |
≤0.88 |
≤0.45 |
≤0.89 |
≤0.46 |
≤0.89 |
≤0.46 |
|
Guanidinoacetate/ |
≤0.092 |
≤0.150 |
≤0.092 |
≤0.149 |
≤0.091 |
≤0.149 |
|
Guanidinoacetate/ |
≤0.035 |
≤0.035 |
≤0.034 |
≤0.034 |
≤0.034 |
≤0.034 |
|
|
66 Years |
67 Years |
68 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
22.6-55.9 |
12.3-33.1 |
22.7-56.3 |
12.3-32.8 |
22.9-56.7 |
12.5-32.4 |
|
Creatinine |
40.2-86.2 |
50.2-106.6 |
40.7-86.3 |
50.3-106.7 |
41.3-86.5 |
50.4-106.9 |
|
Guanidinoacetate |
1.3-2.7 |
1.6-3.1 |
1.3-2.7 |
1.6-3.0 |
1.4-2.7 |
1.6-3.0 |
|
Creatine/ |
≤0.90 |
≤0.47 |
≤0.90 |
≤0.48 |
≤0.90 |
≤0.48 |
|
Guanidinoacetate/ |
≤0.091 |
≤0.149 |
≤0.090 |
≤0.148 |
≤0.090 |
≤0.148 |
|
Guanidinoacetate/ |
≤0.034 |
≤0.034 |
≤0.033 |
≤0.034 |
≤0.033 |
≤0.034 |
|
|
69 Years |
70 Years |
≥ 71 Years |
|||
|
Female |
Male |
Female |
Male |
Female |
Male |
|
|
Creatine |
23.2-57.0 |
12.8-32.0 |
23.6-57.2 |
13.1-31.4 |
24.1-57.3 |
13.6-30.8 |
|
Creatinine |
41.9-86.6 |
50.5-107.1 |
42.4-86.8 |
50.7-107.4 |
42.8-86.9 |
50.8-107.6 |
|
Guanidinoacetate |
1.4-2.6 |
1.6-3.0 |
1.4-2.6 |
1.6-3.0 |
1.4-2.5 |
1.5-3.0 |
|
Creatine/ |
≤0.90 |
≤0.48 |
≤0.90 |
≤0.48 |
≤0.90 |
≤0.48 |
|
Guanidinoacetate/ |
≤0.090 |
≤0.148 |
≤0.090 |
≤0.148 |
≤0.090 |
≤0.148 |
|
Guanidinoacetate/ |
≤0.033 |
≤0.034 |
≤0.033 |
≤0.034 |
≤0.033 |
≤0.034 |
Day(s) Performed
Tuesday
Report Available
3 to 9 daysSpecimen Retention Time
1 monthPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82540
82565
82542