TABLE 2.
Suggestions of blood tests.
| Guidelines | ||||||||
|---|---|---|---|---|---|---|---|---|
| Blood tests | Denmark (2022) | France (2007) | Germany (2019) | Netherlands (2019) | Norway (2022) | Spain a | Turkey (2006) | United States (2009) |
| Fasting glucose, HbA1c | Yes | Fasting glucose | HbA1c | Yes | Yes | Yes. If normal, oral glucose tolerance test | If indicated b |
Fasting glucose.∇ If normal, oral glucose tolerance test |
| Blood count (Hb, leukocytes, erythrocytes, platelets) | Hb, leukocytes, platelets | Yes | Yes | Yes | Hb, leukocytes, platelets | Yes | If indicated b | Yes |
| Liver function (GammaGT, ALAT) | Yes | Yes | Yes | Yes | Yes | Yes | If indicated b | Yes |
| Kidney function (creatinine, eGFR) | Creatinine + urea | Yes | Yes | Yes | Yes | Yes | If indicated b | Yes |
| TSH | Yes | Yes | Yes | Yes | TSH and T4 | Yes | If indicated b | Yes |
| Inflammation (CRP, ESR) | CRP | Yes | Yes | ESR | CRP | ESR | If indicated b | Yes |
| Vitamin B1, B6, B12, folic acid | Yes | No | B12 | Yes | B12 | B12 | B12 if indicated b | B12∇ and folic acid |
| Paraprotein | Yes | No | Yes | Yes | Yes | Yes | If indicated b | Yes∇ |
| Other | IgG, IgA, IgM, rheumatoid factor‐IgM, electrolytes, CK | Transferrin | Electrolytes | No | Electrolytes, CK, Urine: free light chain, if normal free light chain serum | CT‐thorax | If indicated; b urea, nitrogen, urine analysis, chest X‐ray, CT‐thorax, CT‐abdomen, serological tests, c cryoglobulin, CSF, skin biopsy, d ACE, heavy metal analysis, treponema pallidum anti‐bodies, quantitative sensory tests, MRI (cranial, spinal, etc.) | Homocysteine, methylmalonic acid∇ |
Abbreviation: ∇, highest yield.
a
Year of publication unknown.
b
The Turkish guideline has no standard set of blood tests to perform, but all these tests can be performed when deemed necessary by treating physician.
c
Anti‐ganglioside antibodies, anti‐HIV, anti‐hu, anti‐MAG, ANA, Rheumatoid factor, ANCA, anti‐La, anti‐Ro, CMV, EBV, hepatitis B and C.
d
Paraffin sections, teasing, immunohistochemistry, electron microscopy, confocal microscopy.