RBCs are the most common blood cells, comprising 40-45% of total blood volume. Produced in bone marrow under the influence of erythropoietin. Life span is approximately 120 days. Mature RBCs are bright red, biconcave discs without a nucleus
Liver performs detoxification and metabolizes various body substances. Normal SGOT range is 5-50 units/litre of serum. Normal SGPT range is 7-56 units/litre of serum
NLR is a simple parameter assessing inflammatory status. No universal NLR cut-off value exists for healthy population. Study aims to define normal NLR values in adult, non-geriatric population
Healthy adult blood ratio is about 2:1 CD4+/CD8+. Ratio below 1/1 indicates impaired immune system. Increased ratio corresponds to better immune function
Adult potassium range is approximately 3.5-5.0 mEq/L. Hyperkalemia is defined as serum potassium above upper limit. Hyperkalemia can cause lethal cardiac arrhythmias
Adult male: 14-18 g/dL or 8.7-11.2 mmol/L. Adult female: 12-16 g/dL or 7.4-9.9 mmol/L. Pregnant female: >11 g/dL. Children: newborn 14-24 g/dL, 6-18 years 10-15.5 g/dL