Table 1. Laboratory workup for common causes of polyneuropathy such as diabetes mellitus, HIV infection, vitamin B12 deficiency, etc. was negative.

TSH- Thyroid Stimulating Hormone; CRP- C Reactive Protein; AB- Antibody; ANA- Antinuclear antibody; AG- Albumin: Globulin; MuSK- Muscle-specific tyrosine kinase; AChR- Acetylcholine receptor; NMO- Neuromyelitis Optica; IgG/IgM- Immunoglobulin G/ Immunoglobulin M; PCR- Polymerase chain reaction; HIV- Human immunodeficiency Virus; Hep- Hepatitis; HSV- Herpes Simplex Virus; HTLV- Human T-lymphotropic virus

Component.	Result	Ref Range & Units
TSH	1.05	0.35 - 4.94 uIU/mL
Free T4	1.69	0.89 - 1.76 ng/dL
Vitamin B-12	631	211 - 911 pg/mL
Folate	8.54	>5.38 ng/mL
Vit D, 25-Hydroxy	22.7	0.0 - 150.0 ng/mL
CRP	14.5	0.0 - 5.0 mg/L
Sed Rate	14	0 - 30 mm/hr
Procalcitonin	0.05	0.00 - 0.05 ng/mL
Ferritin	217.7	2.0 - 290.0 ng/mL
D-Dimer	0.37	<0.50 mg/L FEU
Serum protein electrophoresis
Albumin Electrophoresis	4.26	3.38 - 4.26 g/dL
Alpha 1	0.38	0.16 - 0.34 gm/dL
Alpha 2	0.94	0.58 - 0.94 gm/dL
Beta	1.15	0.94 - 1.42 gm/dL
Gamma Globulin	1.78	0.46 - 1.86 gm/dL
AG Ratio	1	0.80 - 1.50
Rheumatoid Factor	Negative	Negative
ANA Screen	Negative	Negative
MuSK Antibodies	<1.0	U/mL
Myasthenia Gravis Profile
AChR Binding Abs, Serum	0.07	0.00 - 0.24 nmol/L
AChR Blocking Abs, Serum	15	0 - 25 %
AChR Modulating Abs, Serum		Test Could not be performed.
NMO IgG Autoantibodies	<1.5	0.0 - 3.0 U/mL
Lyme Disease PCR	Negative	Negative
Lyme Total IgM/IgG Ab	Non-Reactive	Non-Reactive
Lyme Total IgM/IgG Ab Index	0.2	<=0.8 AI
HIV ANTIGEN/ANTIBODY	Negative	Negative
Hep A IgM	Negative	Negative, Borderline
Hep B Core IgM	Negative	Negative, Borderline
Hepatitis B Surface Ag	Negative	Negative
Hepatitis C Ab	Negative	Negative, Borderline
HSV, IgM I/II Combination	<0.91	0.00 - 0.90 Ratio
HSV 1 IgG, Type Spec	8.05	0.00 - 0.90 index
HSV 2 IgG, Type Spec	<0.91	0.00 - 0.90 index
HTLV-I/II Antibodies, Qual	Negative	Negative
Syphilis IgG AB	Non-Reactive	Non-Reactive, Equivocal