II. Interpretation: Increased CSF Glucose
- Reflects serum Hyperglycemia
- CSF Glucose lags Serum Glucose by 2 to 4 hours
- CSF Glucose is two thirds of Serum Glucose
- CSF Glucose does not usually rise above 300 mg/dl
III. Interpretation: Decreased CSF Glucose (Hypoglycorrhachia)
- Hypoglycemia
- Granulomatous process
- Chemical Meningitis
- Bacterial Meningitis (Protein normal in 50% of cases)
- Fungal Meningitis
- Subarachnoid Hemorrhage
- Neoplasm
- Certain CNS Viral Infections
- Herpes Simplex Virus
- Mumps
- Lymphocytic choriomeningitis
IV. References
- Kooiker in Roberts (1998) Procedures in ER, p. 1067-75
- Ravel (1995) Lab Medicine, Mosby, p. 294-9
- Tunkel in Mandell (2000) Infectious Disease, p. 974-8
- Seehusen (2003) Am Fam Physician 68:1103-8 [PubMed]