Explore All Tests contains an organized collection of laboratory test articles — blood, urine, stool, disease-specific and uncategorized tests — explained clearly for patients and students.
Vitamin B7 (Biotin), also known as Vitamin H, is essential for energy metabolism, healthy hair, skin, and nerve function. Learn about the Biotin (Vitamin B7) blood test, its normal range (200–1200 ng/L), deficiency causes, symptoms, and how to prepare for the test.
Vitamin B7 (Biotin) Test – Normal Range, Deficiency, and Importance Read More »
Vitamin B6 (Pyridoxine) is a vital B-complex vitamin needed for energy, brain function, and red blood cell production. Learn about the Vitamin B6 test, its normal range (20–125 nmol/L), deficiency causes, symptoms, and preparation steps.
Vitamin B6 (Pyridoxine) Test – Normal Range, Deficiency, and Health Importance Read More »
Vitamin B5 (Pantothenic Acid) is a water-soluble B-complex vitamin essential for energy production, fat and protein metabolism, red-blood-cell formation, and hormone balance. This test measures the blood level of Vitamin B5 to detect deficiency or excess. Learn its normal range, key functions, symptoms of low or high levels, and simple preparation steps for accurate results.
Vitamin B5 (Pantothenic Acid) Test – Normal Range, Function, and Deficiency Symptoms Read More »
The Vitamin B3 (Niacin) blood test measures niacin levels to assess energy, skin, and nervous system health. It helps detect Pellagra and other deficiency-related symptoms. Learn about normal range, causes, and health importance of Vitamin B3.
Vitamin B3 (Niacin) Blood Test – Importance, Normal Range, and Deficiency Symptoms Read More »
The Vitamin B2 (Riboflavin) blood test helps detect deficiency affecting energy, skin, and eye health. It measures riboflavin levels in plasma or serum. Learn the normal range, causes, and symptoms of Vitamin B2 deficiency and how to maintain optimal levels.
Vitamin B2 (Riboflavin) Blood Test – Importance, Normal Range, and Deficiency Symptoms Read More »
The Vitamin B1 (Thiamine) blood test checks levels essential for energy and nerve health. It helps detect deficiency linked to fatigue, nerve pain, or beriberi. Learn the causes, symptoms, and normal range of Vitamin B1 for maintaining overall wellness.
Vitamin B1 (Thiamine) Blood Test – Importance, Normal Range, and Deficiency Symptoms Read More »
The Vitamin K blood test measures Vitamin K levels to assess bleeding risk, bone strength, and liver function. It helps detect deficiency or excess levels and is crucial for patients on anticoagulants or those with bleeding disorders. Learn the normal range, symptoms, and importance of this test.
Vitamin K Blood Test – Purpose, Normal Range, Deficiency & Symptoms Read More »
The Vitamin E blood test measures alpha-tocopherol to detect deficiency or excess levels. It helps assess antioxidant status, nerve and muscle health, and fat-absorption problems. Learn the normal range, causes, and symptoms of low and high Vitamin E levels.
Vitamin E Test – Purpose, Normal Range, Deficiency & Toxicity Symptoms Read More »
The Vitamin D blood test measures 25-hydroxyvitamin D levels to detect deficiency or excess. It helps monitor bone health, immunity, and Vitamin D supplementation. Learn normal ranges, causes, and symptoms of low and high Vitamin D levels.
Vitamin D Test – Purpose, Normal Range, Deficiency & High Level Symptoms Read More »
The Vitamin A Test helps evaluate how much Vitamin A (Retinol) is present in your blood. Both deficiency and excess can cause serious health problems — from vision loss to liver damage. Proper diet, doctor guidance, and balanced supplement use help maintain safe Vitamin A levels.
Vitamin A Test – Purpose, Deficiency, Toxicity, Normal Range, and Preparation Read More »
