NLR Ratio Test | Neutrophil To Lymphocyte Ratio Test |

NLR is simply a calculation based on the Absolute Neutrophil Count divided by the Absolute Lymphocyte Count determined by the peripheral blood CBC differential

Under physiologic stress, the number of neutrophils increases, while the number of lymphocytes decreases.

Endogenous cortisol and catecholamines may be major drivers of the NLR.

Increased levels of cortisol are known to increase the neutrophil count while simultaneously decreasing the lymphocyte count.​

Likewise, endogenous catecholamine may cause leukocytosis and lymphopenia.​

Cytokines and other hormones are also likely to be involved.

Thus, NLR is not solely an indication of infection or inflammation. Any cause of physiologic stress may increase the NLR

Interpretation

Interpretation of NLR depends on clinical context.

A normal NLR is roughly 1-3.

An NLR of 6-9 suggests mild stress

Critically ill patients will often have an NLR of ~9 or higher (occasionally reaching values close to 100).

[idirmohand]

Hi,
My NLR is less than 1. (0.7) , is it normal ?

[suni]

My nlr value is 6 can u pls tell me how to decrease it
And what food should I
Eat

[EverythingCameFromNothing]

My NLR is 0.35. Would that be a level that needs to be investigated further? 🤔