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Can Blood And Thyroid Tests Detect Crystal Meth?

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Posted on Mon, 10 Sep 2018
Question: will crystal meth show up in a metanephrines blood test ? and a thyroid blood test? How long do I have to fast before these blood test?
doctor
Answered by Dr. Dr. Ashok Kumar Choudhary (1 hour later)
Brief Answer:

Around 8 hours.

Detailed Answer:

Hi,

Although crystal meth is not shown in the blood tests used for metanephrines and thryroid hormones but it can cause altered results.

It is important to inform your doctor about the intake of crystal meth as false interpretation of tests can have significant clinical significance for you.

Regarding your another part of question you need to have a fasting period of 7-10 hours before taking the test.

Hope I have answered your query. Let me know if I can assist you further.
Above answer was peer-reviewed by : Dr. Kampana
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Follow up: Dr. Dr. Ashok Kumar Choudhary (19 minutes later)
if the physician orders a blood test of the thyroid and metanephrines can they legally test for drugs as well without your knowledge or do they have to tell you what they are testing for ?
doctor
Answered by Dr. Dr. Ashok Kumar Choudhary (57 minutes later)
Brief Answer:

They can test without informing you.

Detailed Answer:

Hi,

Physician, during course of treatment suspects anything against the land of law, he can use his power to order further testing without the knowledge of patient.

If the said matter is not against the prevailing laws he is not supposed to test without your knowledge.

Hope I have answered your query. Let me know if I can assist you further.
Above answer was peer-reviewed by : Dr. Prasad
doctor
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Follow up: Dr. Dr. Ashok Kumar Choudhary (1 hour later)
is fasting a requirement for a metanephrines and or thyroid blood tests? what happens if complete fasting isn't done?
doctor
Answered by Dr. Dr. Ashok Kumar Choudhary (5 minutes later)
Brief Answer:

For thyroid test.

Detailed Answer:

Hi,

The fasting is absolutely necessary for thyroid test.

In case there is no fasting the level may be elevated erroneously leading to false positive.

Hope I have answered your query.

Take care

Dr. Ashok Kumar, Psychiatrist
Note: For further guidance on mental health, Click here.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Dr. Ashok Kumar Choudhary

Psychiatrist

Practicing since :2000

Answered : 3350 Questions

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Can Blood And Thyroid Tests Detect Crystal Meth?

Brief Answer: Around 8 hours. Detailed Answer: Hi, Although crystal meth is not shown in the blood tests used for metanephrines and thryroid hormones but it can cause altered results. It is important to inform your doctor about the intake of crystal meth as false interpretation of tests can have significant clinical significance for you. Regarding your another part of question you need to have a fasting period of 7-10 hours before taking the test. Hope I have answered your query. Let me know if I can assist you further.