Do I really need to fast before getting tests for vitamin B12, vitamin D, CBC, and thyroid? I was told to get these because I'm dealing with hair fall, but I'm not sure if fasting is necessary. Can you clarify this for me?

Answered by 1 Apollo Doctors

Dr Anshul Maheshwari

General Practitioner

MBBS
5+ Yrs

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The needle-like stomach pain could be due to gas, acid reflux, food poisoning, or stress. To alleviate the discomfort:

Self-Care

Stay hydrated: Drink plenty of water.

Avoid triggers: Steer clear of spicy, fatty, or heavy foods.

Over-the-counter relief: Try antacids or acid reducers like Tums, Rolaids, or Zantac.

When to Seek Medical Attention

Severe pain: Unbearable or worsening pain.

Vomiting: Vomiting blood or severe vomiting.

Fever: High fever (over 101.5F).

Abdominal tenderness: Stomach tenderness to the touch.

Dr. Anshul Suggests...

Consult a Dermatologist

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Answered 04/07/2025

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For your tests related to hair fall, here are some key points to know about fasting requirements:

Vitamin B12 and Vitamin D tests: Generally, you do not need to fast before these blood tests. They can be done at any time of the day.
Complete Blood Count (CBC): No fasting is required for a CBC test.
Thyroid function tests: These also do not require fasting.

It's always a good idea to follow any specific instructions given by your healthcare provider or the lab. If you are taking any medications or supplements, mention them before the test.

If you have any other concerns or symptoms, discussing them with your doctor will help tailor the testing and treatment plan effectively.

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I've been using Virovir 500 for treating my Herpes and it's helped a lot with the infection, but I still have this annoying itching above my left ear and behind my ears. Someone mentioned Sofinox might be a good solution, but I'm a bit worried. Is it safe to use it around the hair without worrying about any side effects, like hair fall? Would appreciate some guidance.

Sofinox cream contains Miconazole which is an antifungal medication. It is safe to apply around the hairs above the ear for itching. Make sure to apply a thin layer and gently massage it into the skin. There should be no significant side effects when used as directed. It is unlikely to cause hair fall later on. Apply it twice a day for 1-2 weeks for best results.

Answered by 1 Apollo Doctors