What Blood Tests Should I Get for Mood Swings?

The most recommended blood tests for mood swings are TSH, estradiol, progesterone, vitamin D, vitamin B12, and a CBC. Thyroid dysfunction and hormonal fluctuations are leading causes of mood instability. These tests also detect nutritional deficiencies linked to rapid shifts in mood.

Possible Causes

HypothyroidismPerimenopausePCOS (Polycystic Ovary Syndrome)Vitamin D Deficiency

Recommended Tests

TSH

$8

Measures thyroid-stimulating hormone to evaluate thyroid function. TSH is the most sensitive marker for detecting thyroi...

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Free T4

$8

Measures the unbound, active form of the thyroid hormone T4. Helps assess thyroid function and diagnose thyroid conditio...

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Estradiol

$12

Measures the primary form of estrogen. Important for reproductive health in both men and women.

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Progesterone

$12

Measures progesterone levels important for menstrual cycle and pregnancy.

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Vitamin D

$22

Measures vitamin D status. Deficiency is common and linked to bone health, immune function, and mood.

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B12

$8

Measures B12 levels essential for nerve function, DNA synthesis, and red blood cell formation.

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CBC w/ Diff

$5

Comprehensive blood cell analysis including red cells, white cells, platelets, and white cell differential.

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When to See a Doctor

If your mood swings is severe, rapidly worsening, or accompanied by alarming symptoms (chest pain, shortness of breath, high fever), seek immediate medical attention. Blood tests are a valuable first step, but they don't replace evaluation by a healthcare professional.

Frequently Asked Questions

Related Symptoms

AnxietyDepressionIrregular PeriodsInsomnia

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Content reviewed for accuracy by the JustLabs editorial team.