What Blood Tests Help Personalise IV Therapy? | ALIV

Medically Reviewed by Dr. Sunita Tandulwadkar | Written by ALIV

The difference between IV therapy that genuinely changes how you feel and IV therapy that is expensive guesswork comes down to one thing: knowing what your body actually needs before you start infusing it. Without blood work, a clinician is selecting a formulation based on your symptoms and best guesses. With blood work, the formulation is built around confirmed gaps. These are clinically different approaches with different outcomes. At ALIV's Pune and Mumbai clinics, every IV programme begins with a targeted panel. Here is what we test, and why each marker matters.

The Core Pre-IV Blood Panel

Serum B12. The most commonly deficient nutrient in India — particularly in vegetarian and vegan populations — and the one that most commonly presents as fatigue, brain fog, tingling in the extremities, and mood changes. Testing before any B-vitamin IV is essential: patients with B12 in the 200–350 pg/mL range may appear "normal" on a standard report but can be functionally deficient, particularly if they have neurological symptoms. Homocysteine (an indirect marker of functional B12 status) provides additional information when the clinical picture does not match the serum level.

Ferritin (not just haemoglobin). Haemoglobin becomes abnormal only after iron stores have been significantly depleted. Ferritin — the storage form of iron — falls earlier and is the most sensitive marker of iron depletion. Patients with ferritin in single digits but haemoglobin technically above the anaemia threshold may still have significant iron-deficiency fatigue, hair loss, and poor exercise tolerance. Testing ferritin alongside haemoglobin gives a complete picture of iron status. We cover this in detail in our chronic fatigue clinical guide.

25-OH Vitamin D. Despite abundant sunshine, India has one of the world's highest rates of vitamin D deficiency in urban populations — driven by indoor lifestyles, SPF protection, and melanin's competition with the vitamin D synthesis pathway. Vitamin D affects immunity, mood, bone health, and energy. A baseline level guides whether IV vitamin D-supportive therapy is needed and whether parallel oral supplementation is required to reach optimal target ranges.

Serum magnesium. A useful initial screen, with one important limitation: serum magnesium reflects only about 1% of total body magnesium. A "normal" serum level does not guarantee adequate cellular and tissue magnesium. For patients with fibromyalgia, muscle cramps, anxiety, or poor sleep — all potential magnesium deficiency symptoms — clinical judgement alongside the serum level guides the decision. See our article on electrolytes versus vitamins in IV therapy.

TSH, free T3, free T4. Thyroid dysfunction presents with fatigue, brain fog, weight change, hair loss, and mood disturbance — symptoms that overlap with almost every condition IV therapy is used to address. Testing thyroid before committing to IV therapy ensures you are not treating thyroid disease with vitamins. Free T3 specifically — the most metabolically active thyroid hormone — is often omitted from standard thyroid panels and can be suboptimal even when TSH is in the normal range.

Fasting glucose, fasting insulin, HbA1c. Insulin resistance is among the most common metabolic drivers of fatigue, weight gain, and cognitive sluggishness in urban Indians — and it is frequently undetected until type 2 diabetes is established. Fasting insulin and HOMA-IR (calculated from fasting glucose and insulin) are more sensitive early markers than fasting glucose alone. These results also guide formulation decisions — glucose-containing IV carriers are modified for patients with insulin resistance or diabetes.

Liver function tests (LFT). The liver processes a significant proportion of IV-delivered compounds. Compromised liver function changes how they are metabolised and cleared. LFT is essential before any high-dose antioxidant or detox-adjacent protocol, and as a baseline for patients beginning a sustained IV programme.

Renal function tests (RFT). Kidney function determines the safe fluid volume and electrolyte composition of any IV formulation. This is non-negotiable before IV therapy for any patient over 50 or with any history of kidney issues, hypertension, or diabetes. See: who should avoid IV drips.

Additional Tests for Specific Clinical Contexts

For PCOS patients: LH, FSH, testosterone (total and free), DHEA-S, AMH, fasting insulin. For skin IV therapy: Androgen panel, ferritin, thyroid (both drive skin and hair changes). For fatigue workup: CRP (high-sensitivity), ESR, folic acid. For athletes: Full metabolic panel, uric acid, creatine kinase. The skin biomarker context is covered in our skin health and pigmentation pillar.

Do I need blood tests before every IV session?

No — a comprehensive panel before your initial course is the standard. After the initial course (typically four to six sessions), a targeted repeat of key markers — B12, ferritin, vitamin D — confirms response and guides the maintenance plan. For patients on ongoing long-term programmes, a full reassessment panel every three to six months is the appropriate monitoring frequency.

Can I bring my own recent blood test results to ALIV?

Absolutely — and this is encouraged. If you have had blood tests done within the past three months, bring all reports to your consultation. Our clinical team will review them, identify any gaps, and advise on whether additional specific tests are needed. This is often the most efficient starting point and avoids repeating tests unnecessarily.

What if all my blood tests come back "normal"?

Normal reference ranges are designed to identify disease thresholds — not to optimise function. A B12 of 225 pg/mL is technically above the deficiency cutoff, but may be functionally inadequate for a patient with neurological symptoms. A ferritin of 14 ng/mL is above the anaemia threshold but associated with hair loss and poor exercise tolerance in clinical practice. At ALIV, results are interpreted in the context of symptoms and individual history — not just the laboratory reference range printed on the report.

What should I eat before blood tests for IV personalisation?

For fasting markers (fasting glucose, fasting insulin, fasting lipids): fast for eight to ten hours beforehand — water is fine. For non-fasting markers (B12, vitamin D, ferritin, thyroid): eating beforehand does not affect results. Check with the pathology lab if uncertain about their specific requirements for the panel you are having done.

How much does the pre-IV blood panel cost?

At major pathology chains in Pune and Mumbai (Thyrocare, SRL, Metropolis), a comprehensive wellness panel covering the markers above typically costs between ₹2,500 and ₹6,000 depending on the specific tests included. ALIV can advise on which specific tests are most relevant for your clinical picture to avoid unnecessary spending.

Want your blood work interpreted by someone who connects the results to your symptoms?

ALIV's clinical team in Pune and Mumbai provides a comprehensive pre-IV assessment and builds your programme around what your blood work actually shows. Visit alivtherapy.in to begin.

Medically Reviewed by Dr. Sunita Tandulwadkar. This article is for informational purposes only and does not constitute medical advice. Therapies offered by ALIV are proprietary, experimental protocols and results vary by individual.