Blood values and what they measure
Blood values are measurable substances in your blood. Together they sketch a picture of your energy, recovery and capacity. Look up a value and check its reference range. Each one explains what a high or low result says about your condition.
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Hemoglobin Electrophoresis
Hemoglobin electrophoresis is a laboratory technique that separates and identifies different types of hemoglobin in your blood.
Hepatitis B Core Antibody
A Hepatitis B Core Antibody (anti-HBc) test detects antibodies produced in response to the core antigen of the hepatitis B virus.
Hepatitis B Surface Antigen
A Hepatitis B Surface Antigen (HBsAg) test detects the presence of HBsAg in your blood, which is one of the earliest indicators of a hepatitis B infection.
Hepatitis C Antibody
A Hepatitis C Antibody (anti-HCV) test detects antibodies produced by the immune system in response to the hepatitis C virus.
Holotranscobalamin
Holotranscobalamin measures the earliest sign of B12 depletion. For active individuals, catching B12 deficiency early may help maintain red blood cell production, oxygen transport, and optimal recovery from intense training.
Homocysteine
Elevated homocysteine may increase cardiovascular risk, which is relevant for active individuals pushing their bodies. Monitoring supports heart health alongside performance optimisation.
IGF-1 (Insulin-like Growth Factor)
IGF-1 is a critical marker for active individuals and active individuals, as it plays a central role in muscle repair, tissue recovery, and training adaptation.
IGF-BP3
IGF-BP3 regulates the availability of IGF-1, a key growth factor for tissue repair and training adaptation.
INR
INR (International Normalized Ratio) standardises prothrombin time results across laboratories, making it the universal measurement for monitoring oral anticoagulant therapy (warfarin) and assessing the extrinsic clotting pathway.
Inhibin B
Inhibin B provides insight into gonadal health, which can influence hormonal balance, recovery capacity, and overall physical performance.
Insulin (Fasting)
Fasting insulin provides insight into metabolic efficiency and fuel utilisation during exercise. Active individuals benefit from understanding their insulin sensitivity for optimal energy management.
Interleukin-6 (IL-6)
IL-6 is a key marker for exercise-induced inflammation and recovery. Active individuals can use it to monitor training load, detect overtraining, and optimise recovery protocols.
Intrinsic Factor Antibodies
Intrinsic Factor Antibodies tests for autoimmune B12 malabsorption.
Iodine
Iodine is essential for thyroid function, which regulates metabolic rate and energy availability during exercise. Adequate levels support consistent training performance.
Iron (Serum)
Serum iron indicates current iron availability for oxygen transport during exercise. Low levels can directly impact aerobic performance and recovery time.
Irregular Antibody Screening
An irregular antibody screening test detects unexpected antibodies in your blood that may react against foreign red blood cells.
LDH (Lactate Dehydrogenase)
LDH, or lactate dehydrogenase, helps muscle cells, red blood cells and most other tissues convert lactate; it is an enzyme, a protein that speeds up such a conversion.
LDL Cholesterol
LDL cholesterol is the cholesterol your blood carries from your liver to the rest of your body.
LDL/HDL Ratio
The LDL/HDL ratio tells you how your LDL cholesterol relates to your HDL cholesterol: it is one number divided by the other, and it is probably the weakest number on your entire lipid report.
LH (Luteinizing Hormone)
LH is a critical pituitary hormone for active individuals, as it regulates sex hormone production that influences recovery, body composition, and training adaptation.
Lactate
Lactate testing is essential for active individuals to determine training zones, assess aerobic capacity, and monitor the lactate threshold for performance optimisation.
Leptin
Leptin is a hormone produced by adipose tissue that plays a central role in appetite regulation and energy balance.
Leukocyte Differential
A leukocyte differential test measures the relative proportions of different types of white blood cells in your blood.
Leukocytes (WBC)
Your leukocyte count tells you how many white blood cells were flowing through your blood at the moment of the draw, and in someone who trains that number often says more about the last session than about the immune system.