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B12 is 118, should I be having injections?

B12-118 profile image
16 Replies

Hi,

symptoms are:

Severe Fatigue

Muscle weakness

Sleepiness, excessive yawning

Memory and cognitive problems, mental slowness

Blurred vision

Bumping into things/ balance

Kyleena coil fit 2 years ago but bleeding daily for past 2 mths

I cannot function or do my job

I had various bloods tested on Monday this week, on Wednesday I was given prescription of cyanocobalamin 1mg following b12 of 118. My previous numbers were around 450 on past tests.

I believe my GP is awaiting intrinsic factor result before considering injections.. but I think I've read with b12 this low it should be started immediately.

What is the guidance or correct procedure in this case?

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B12-118
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16 Replies
clivealive profile image
clivealiveForum Support

Hi B12-118

Are you not from the U.K?

Was the "prescription of cyanocobalamin 1mg" given as an injection? Ideally you should have injections of cyano every other day for 10 to 14 days or until your symptoms have stopped improving. For long term treatment (if necessary) they are normally every four weeks thereafter.

Do you know why your B12 was so low other than (possibly) the long term bleeding?

Do you know whether your iron and Folate levels were tested?

I am not a medically trained person but if you can reply to the above questions others on this forum who are more experienced may come along with good advice.

I wish you well

Gambit62 profile image
Gambit62Administrator

With the symptoms you have and a B12 that is that low you should really be on loading shots rather than 1000mg tablets as you need your B12 levels raised much more quickly than can be achieved with high dose oral ... and high does oral just doesn't work for everyone - it works for some but not for others.The fact that you are having issues with balance and bumping into things suggest that you have neurological involvement and your treatment needs to be more aggressive to ensure that neurological problems start to reverse.

I am assuming that your deficiency isn't dietary - ie you do it meat and animal products.

Unfortunately the test for Intrinsic factor antibodies isn't very sensitive and gives false positives between 40-60% of the time (depending on the exact test so a negative is a long way from ruling out PA as a cause. The BCSH guidelines actually refer to IFAB-negative PA as a result.

If you can talk to your doctor - ask him to look at the BCSH standards on cobalamin and folate disorders which can be found here

onlinelibrary.wiley.com/doi...

Unfortunately there has been some rather confusing guidance issued during the pandemic which has compounded some rather unclear guidance elsewhere on treating B12 absorption problems, of which PA is the most common.

Your GP may also find the area of the PAS website specifically geared towards helping medical professionals improve the diagnosis and treatment of PA

pernicious-anaemia-society....

and there is also a section on treatment during the pandemic

pernicious-anaemia-society....

B12-118 profile image
B12-118 in reply to Gambit62

Thank you so much for your reply..

I have a good diet. I have eaten 2 eggs every day for breakfast for must of my life, I eat meat and dairy. Don't drink or smoke. Don't exercise though.

No other health conditions other than taking sertraline 150mg to manage anxiety which it generally does well.

The docs did a good lot of bloods on me, here are the highlights

B12 is 118

Mean Cell haemoglobin level is 32.6 (27-32)

Serum potassium is at bottom end of normal range at 3.5mmol/l (3.5 -5.3)

TSH is 5.21 (.38 - 5.35)

Ferritin is 46 (11 -307)

Folate 9.4 (3.1 - 19.9)

Gambit62 profile image
Gambit62Administrator in reply to B12-118

the only think that is obviously out of whack is the B12 and the MCH which is high (indicating that you have macrocytosis as a result of the B12 deficiency). Given your diet you have an absorption problem and if you think back over the last few years and think about the symptoms of B12 they may well have been creeping up on you for years, possibly even decades. It is probably worth keeping an eye on the TSH as there is a high co-morbidity for hashimotos (auto-immune hypothyroidism) and PA but the big thing is probably to get through to the GP that IFA testing doesn't rule out PA and at the moment, as it isn't diet, PA is the most likely. High dose oral might work for you but it will be quite slow in raising your levels and as you have neurological involvement then it should be addressed quickly.

B12-118 profile image
B12-118 in reply to Gambit62

Thank you so much. Can't thank you ask enough for your help. There is reams of stuff to read and my brain isn't working like it used you. Yes this fatigue has crept up on me.. Ive blame everything from a stressful job to becoming a mum. Im 45 with a 2 year old. Of course I'm going to be tired but boy this is something else.

B12-118 profile image
B12-118 in reply to Gambit62

Hi,

I have an update.

Saw doc this morning.

She took cervical swabs re bleeding, left coil alone for now. Results bk in a few days.

Re B12 (118)

She agreed to give me loading doses and these are booked in over the next 2 weeks, starting 2mrw, (6 doses. Tues, Thurs, Fri this week then Monday Wednesday Thurs next week)

However, intrinsic factor came bk negative so initally she says I won't need injections after this.

I try to quote the evidence of 50% accuracy of this test, knowing mine isn't diet related but it came out all garbled.

The issue is with man power and she confirmed what we all know, about people having them stopped over covid.

I said I am happy to self inject. I am a nurse.

I'm a mental health nurse but I've been trained to give injections.

With that she seemed happy, in that i am competent to do so and has asked the pharmacy if this is possible to have the ampoules following losing dose. Await reply.

Ok.. devil's advocate...imagining the intrinsic factor result is true and not a false negative, could the loading doses be enough to get me back on track (bearing in mind I had covid in Dec 2020 and wonder if this played a part) or do you think, given it is not diet related, I WILL need to continue for life?

I was quoting PA guidance but she said to me, but you don't have anaemia... just the b12 so it's not PA.

Tying myself in knots

Gambit62 profile image
Gambit62Administrator in reply to B12-118

frustrating. Pernicious Anaemia is an auto-immune disorder of the gut which prevents/ inhibits the absorption of B12. One consequence of this can be anaemia - 20% of patients with PA don't present with anaemia.I suggest you write or email - copying in the practice administrator and share the link to the BCSH guidelines and ask the GP to read and digest the section on various tests for causes of B12 deficiency and their limitations - alternatively print out the section or cut and paste it into a letter with a link so they can double check if they need.

Some absorption problems can, in theory be treated with the result that you wouldn't need injections for life - h pylori infection, tapeworm infection, SIBO. Unless it has been confirmed that you have one of these and it is being/has been treated you will need injections for life as the most efficient way of ensuring B12 levels are maintained

B12-118 profile image
B12-118 in reply to Gambit62

Once again, thank you. I have just ordered hydroxocobalamin needles and syringes to sort myself out until this is provided by GP.. In the mean time..

Should I be taking anything else along side the injections.. folate for example..?

Gambit62 profile image
Gambit62Administrator in reply to B12-118

You only need to supplement if you are deficient at this point. Absorption problems can also affect other vitamins and minerals but at this point folate looked okay

Curlygal profile image
Curlygal in reply to Gambit62

Do you mean false negatives? (Or am I missing something?)

B12-118 profile image
B12-118 in reply to Curlygal

No I think the results are correct given my symptoms. I was checking why with b12 this low I've been given oral meds instead of inje whilst they wait in intrinsic factor result... but even if that's negative .... clinically I need the injections 💉

Gambit62 profile image
Gambit62Administrator in reply to Curlygal

Thanks Curlygal - have edited the original comment - should have been 'gives false negatives 40-60% of the time .... '

MariLiz profile image
MariLiz

Yes, you definitely need injections! I hope you will get the treatment you need.

jimmel196 profile image
jimmel196

In my case I wish my physician had done a homocysteine level and methylmelonic acid level along with the intrinsic factor blocking antibody test. The intrinsic factof test can give a lot of false positives in people with PA. I don't know about in ghd UK but in the US I will get back most blood test results within 3-5 days so waiting a brief period of time probably causes no problems.

Catlover3 profile image
Catlover3

I would keep an eye on your thyroid as your tsh is creeping up. Did they test your T4/T3? I would do private blood tests for a full thyroid panel in 3 months to see if there are any changes. Your ferritin levels are in range but at the lower end too , I like to keep mine above 70. Look at the Thyroid Uk site on here and there is loads of information from people whom are far more knowledgeable than I am. Hope you improve quickly.x

Sleepybunny profile image
Sleepybunny

Hi,

Hopefully some of the links below will be of interest....

Link about "What to do next" if B12 deficiency suspected or newly diagnosed.

b12deficiency.info/what-to-...

Risk Factors for PA (Pernicious Anaemia) and B12 Deficiency

pernicious-anaemia-society....

b12deficiency.info/what-are...

b12deficiency.info/who-is-a...

Symptoms of B12 Deficiency

pernicious-anaemia-society....

b12deficiency.info/signs-an...

b12d.org/admin/healthcheck/...

cks.nice.org.uk/topics/anae...

Do you have any neurological symptoms?

If yes, has your GP sought advice from/referral to a haematologist and a neurologist?

Has your GP got a list of all your neurological symptoms?

Symptoms of Peripheral Neuropathy (damage to peripheral nerves)

nhs.uk/conditions/periphera...

Peripheral neuropathy can be associated with B12 deficiency and sometimes with folate

deficiency.

Vital to get adequate treatment as untreated or under treated B12 deficiency can lead to an increased risk of permanent neurological damage including problems with spinal cord.

Neurological Consequences of B12 Deficiency

PAS news item about Neurological Consequences

pernicious-anaemia-society....

PAS article about SACD, sub acute combined degeneration of the spinal cord

pernicious-anaemia-society....

If you feel you are being under treated and you have neuro symptoms, may be worth drawing your GPs attention to the possibility of SACD.

I'm not saying you have this, just that your GP needs to be aware of the possibility in people with B12 deficiency.

If you see a neurologist, you could ask them to test your proprioception sense ( awareness of where the body is in space as problems with proprioception can be associated with B12 deficiency and sometimes with folate deficiency. I think proprioception is also called position sense.

UK B12 documents

BSH Cobalamin and Folate Guidelines

b-s-h.org.uk/guidelines/gui...

Above document has useful diagnostic flowcharts.

Summary of above document

pernicious-anaemia-society....

BMJ B12 article

bmj.com/content/349/bmj.g5226

Emphasises need to treat patients who are symptomatic even if their B12 level is within range.

Low dose cyanocobalamin tablets are sometimes used to treat B12 deficiency due to diet.

My understanding of UK guidance is that severe dietary B12 deficiency where neuro symptoms are present, should be treated with B12 injections.

BNF Cyanocobalamin

bnf.nice.org.uk/drug/cyanoc...

BNF Hydroxycobalamin

bnf.nice.org.uk/drug/hydrox...

If you have neurological symptoms, see section in link above for patients with "neurological involvement".

GP can find this info in their BNF book in Chapter 9 Section 1.2

NICE CKS guidance on B12 and Folate deficiency

cks.nice.org.uk/anaemia-b12...

cks.nice.org.uk/topics/anae...

Local Guidelines

Each CCG/Health Board/NHS Hospital Trust will have its own local guidelines on treatment and diagnosis of B12 deficiency. I recommend you get hold of the local guidelines for your area of UK and compare them with BSH, BNF and NICE CKS links above.

Some local UK guidelines are not helpful. See blog post below.

b12deficiency.info/blog/202...

I have put a few of the UK local guidelines on this forum so may be worth searching for your area's guidelines on this forum.

Be warned that there are moves afoot in UK to move more patients onto oral B12 tablets.

It's my impression that this is a cost cutting measure and while I accept that some people are okay on oral tablets, some UK forum members have reported that oral tablets were ineffective.

"but she said to me, but you don't have anaemia... just the b12 so it's not PA. "

Oh dear....I think she needs to do a bit more reading about B12 deficiency.

Misconceptions about B12 deficiency

Sadly some doctors (both GPs and specialists) and health professionals have misconceptions about B12 deficiency.

See links below.

B12 article from Mayo Clinic in US

ncbi.nlm.nih.gov/pmc/articl...

Table 1 in above article is about frequent misconceptions about B12 deficiency.

Misconceptions about a B12 deficiency

(from Dutch B12 website so units and ref ranges may vary from those in UK)

stichtingb12tekort.nl/engli...

B12 deficiency and anaemia

(from Dutch B12 website so units and ref ranges may vary from those in UK)

stichtingb12tekort.nl/engli...

Unhappy with Treatment (UK info)?

Letters to GPs about B12 deficiency

b12deficiency.info/b12-writ...

Point 1 is about under treatment of B12 deficiency with neuro symptoms.

Point 5 is about being symptomatic for B12 deficiency with an in range serum B12 result.

Link above has letter templates about various situations to do with B12 deficiency.

Letters avoid face to face confrontation with GP and allow patient time to express their concerns effectively.

Best to keep letters as brief, to the point and polite as possible. It's harder to ignore a letter in my opinion.

When a letter is sent to GP, worth including a request that GP practice sends written confirmation to letter writer that they have received letter.

I included a request in letters that a copy of letter was filed with medical notes.

My understanding is that in UK, letters to GPs are supposed to be filed with medical notes so are therefore a record that an issue has been raised.

Useful to have a paper trail in case there is a need for a formal complaint over treatment in future.

Letters could contain some of the following relevant test results, date of diagnosis, brief family and personal medical history, extracts from UK B12 documents, requests for referrals to relevant specialists eg neurologists, haematologists, gastro enterologists but try to keep them short.

Keep copies of any letters sent or received.

Retention of UK medical records

bma.org.uk/advice-and-suppo...

Don't rely on there being evidence of a past diagnosis of PA (Pernicious Anaemia) or other cause of B12 deficiency in current medical records.

If you get proof of diagnosis eg positive test result/letter from specialist confirming diagnosis etc keep a copy in a safe place.

Accessing Health Records (England)

nhs.uk/using-the-nhs/about-...

england.nhs.uk/contact-us/h...

patients-association.org.uk...

CAB NHS Complaints

citizensadvice.org.uk/healt...

HDA patient care trust

UK charity that offers free second opinions on medical diagnoses and medical treatment.

They are not currently taking on new cases and I have read mixed reports about them.

hdapatientcaretrust.com/

Local MPs/devolved representatives may be worth talking to if struggling to get appropriate treatment.

members.parliament.uk/

Pandemic

If you feel your treatment has been affected by impact of pandemic then see links below.

B12 Deficiency Info blog posts about pandemic

b12deficiency.info/covid-19/

b12deficiency.info/blog/

PAS news items about pandemic

pernicious-anaemia-society....

One of the PAS news items is about contacting NHSE about treatment concerns during pandemic.

pernicious-anaemia-society....

PA and coeliac disease are both auto immune conditions that can lead to b12 deficiency.

Is there a family history of auto immune conditions?

Have you been tested for coeliac disease?

NICE guidelines Coeliac Disease below indicate that anyone with unexplained B12, folate or iron deficiency should be tested for coeliac disease.

nice.org.uk/guidance/ng20/c...

If you think PA (Pernicious Anaemia) is a possibility then worth joining and talking to PAS who can offer support and pass on useful info.

PAS (Pernicious Anaemia Society)

Based in Wales, UK.

pernicious-anaemia-society....

There is a helpline number that PAS members can ring.

PA tests

Intrinsic Factor Antibody (IFA) test

labtestsonline.org/tests/in...

Parietal Cell Antibody (PCA) test

labtestsonline.org/tests/pa...

PCA is not recommended as a diagnostic test for PA in UK.

"I believe my GP is awaiting intrinsic factor result before considering injections"

It is still possible to have PA with a negative result in IFA or PCA test but sadly some GPs may not be aware that it is possible to have Antibody Negative PA.

Is your GP aware of the possibility of Antibody Negative PA?

About 50% of people with PA test negative on IFA test.

About 10% of people with PA test negative on PCA test.

Antibody Negative PA is mentioned in BSH Cobalamin and Folate Guidelines document. It is also mentioned in Martyn Hooper's book below.

Two useful B12 books

"What You Need to Know About Pernicious Anaemia and B12 Deficiency" by Martyn Hooper

Martyn Hooper is the chair of PAS (Pernicious Anaemia Society). BNF treatment info in above book is out of date. See BNF Hydroxycobalamin link in this reply for up to date treatment info.

"Could it Be B12?: An Epidemic of Misdiagnoses" by Sally Pacholok and JJ. Stuart (US authors)

Very comprehensive with lots of case studies.

Films and videos about B12 deficiency

PAS conference videos 2019

pernicious-anaemia-society....

Films about b12 deficiency

b12deficiency.info/films/

"I'm a mental health nurse "

B12 deficiency and Mental Health

b12deficiency.info/b12-and-...

martynhooper.com/2017/01/22...

I am not medically trained.

I've written some very detailed replies with more B12 info eg more on causes of b12 deficiency, symptoms, blood tests, more B12 books, more B12 articles, hints about how to cope with unhelpful GPs etc that you may find of interest.

healthunlocked.com/pasoc/po...

healthunlocked.com/pasoc/po...

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