I have had under active thyroid for many years maybe nearly 30 years or longer. I took Levothyroxin and didn’t think anymore about it. That was until my surgery was cancelled, Need another blood test. Can anyone tell me what TSH level should be for a female age 59 years before surgery.
many thanks
Written by
Sunny999
To view profiles and participate in discussions please or .
Your TSH would likely need to be at least within the normal range which is probably under 4.
Your GP should be testing your thyroid at least annually.
When hypo we get low stomach acid that means we cannot absorb vitamins well from our food. For thyroid hormone to work well we need OPTIMAL levels of vitamins. Have you recently or could you ask your GP to test levels of ferritin, folate, B12 & D3?
I don't know but wonder if it is hospital specific. My TSH has been suppressed for donkey's years, usually 0.005 or <0.01 and I had surgery last week and nothing was mentioned (blood test taken about 3 hours before surgery). My FT4 and FT3 are always in range so I have no idea if that was taken into account.
They can do that. Few years back on my pre op assessment bloods my TSH was high (my TSH did this on Levo only) and it got flagged up with GP. Luckily there was plenty of time to get it sorted before the op.
hi Jazzw, it is possible I have got it wrong but don’t think so. My result TSH level is 7.7 which is the only result I have. My GP said to leave thyroid medication at 100mg but pre op said to reduce thyroid medication, so I am confused.
sorry if I have all ready replied but it gets confusing, the anaesthetist said to reduce medication. Only get a certain amount of Levothyroxin so can increase a little for a short time.
I think you need to make some more enquiries to find out for definite your numbers and what the advice of your doctors really is. Ask for a print out of the results, I assume this was at a hospital which can be harder to find results but phone the consultants secretary who should be able to help you.
When you have the results come back, make a new post and post the results along with the ranges - numbers in brackets after test result number.
My result TSH level is 7.7 which is the only result I have. My GP said to leave thyroid medication at 100mg but pre op said to reduce thyroid medication, so I am confused.
That level of TSH is too high for someone on Levothyroxine, reducing your dose will send your TSH higher and make you more hypothyroid. You need an increase in your dose to bring your TSH down. Most hypo patients on Levo only feel best when TSH is 1 or below with FT4 and FT3 in the upper part of their ranges.
In the majority of patients 50-100 μg thyroxine can be used as the starting dose. Alterations in dose are achieved by using 25-50 μg increments and adequacy of the new dose can be confirmed by repeat measurement of TSH after 2-3 months.
The majority of patients will be clinically euthyroid with a ‘normal’ TSH and having thyroxine replacement in the range 75-150 μg/day (1.6ug/Kg on average).
The recommended approach is to titrate thyroxine therapy against the TSH concentration whilst assessing clinical well-being. The target is a serum TSH within the reference range.
……The primary target of thyroxine replacement therapy is to make the patient feel well and to achieve a serum TSH that is within the reference range. The corresponding FT4 will be within or slightly above its reference range.
The minimum period to achieve stable concentrations after a change in dose of thyroxine is two months and thyroid function tests should not normally be requested before this period has elapsed.
many thank for information. I take vitamin d and b12 orally as my GP surgery has stopped the injections to save money but apparently levels are still high.
My result TSH level is 7.7 which is the only result I have. My GP said to leave thyroid medication at 100mg but pre op said to reduce thyroid medication,
Are you absolutely sure it was TSH that was 7.7 …..not Ft3 that was 7.7
If it’s was Ft3 that was 7.7 you might need dose reduction
Before increasing dose levothyroxine get hold of actual blood test results and vitamin results too
many sources I’ve come to trust suggest a tsh of 0.5 - 1.5 shows someone thriving, if medicated then it may be suppressed. But tsh is a poor metric of thyroid function in any case x
hi, Sunny. I don’t know the answer to this, but like you, I’ve been on synthroid for over 30 years. It is interesting to me that when I had knee surgery and when my gastric guy did a colonoscopy and punctured me, that afterwards they both asked if I was on blood thinners, which I’m not. No one has ever said this was possible but perhaps this is the reason. It would be helpful to know as I may be having the other knee done. I have an appointment coming up and I’ll be sure to ask him! Best regards to you.
thank you for your reply. You poor thing, hope you recovered well. Did you have a knee replacement? I had my other knee done twice and had not had an issue with having an under active thyroid. Hopefully will soon be able to have my 3rd knee replacement when my blood is ok. I have not required blood thinners. Hope your appointment goes well and you get some answers. Be interesting to know what they say.
Not a poor thing for this alone. If I told you all I’ve been through over the last 10 years, then you could say that again! I keep on plodding along. Life is strange, but I’ll take it for as long as possible! 😊
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.