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JetPlane profile image
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Can anyone point me the direction of where it tells my doctor what treatment I should of received following my low b12 result please in the uk?

I was told my level was 116 (I was told this was just a bit low) but I have no idea out of what level it should be etc.

The doc told me because I wasn’t pernicious anaemia so I didn’t need loading injections. I explained I take a b12 100% dose tablet supplement everyday. I also eat a balanced diet. I asked why my body wasn’t absorbing it. The response was no idea. I’ve started 3 monthly injections.

Three days later, the doctor’s receptionist called and I find out I wasn’t tested to see if I was pernicious anaemic and they wanted to do bloods to test for the instr. factor. Since my booster I’ve felt a clarity in the brain fog but I’m still being so forgetful and reversing processes in simple tasks I do. So there is definitely neurological things going on. I don’t think my doctor knows what he’s doing with this.

I’m in the UK and have lots of questions about this.

At what level should daily loading doses be given in the uk? Are they only given if diagnosed with PA? At what level can neurological things go wrong? What level is classed as dangerous or low?

Any help to clarify things so I can go to my doctor and show him and show him where it says will help me get the right treatment. Thank you

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JetPlane
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13 Replies
clivealive profile image
clivealiveForum Support

Hi JetPlane

"Pernicious anaemia and other macrocytic anaemias without neurological involvement

By intramuscular injection

For Adult

Initially 1 mg 3 times a week for 2 weeks, then 1 mg every 2–3 months.

Pernicious anaemia and other macrocytic anaemias with neurological involvement

By intramuscular injection

For Adult

Initially 1 mg once daily on alternate days until no further improvement, then 1 mg every 2 months".

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

JetPlane profile image
JetPlane in reply to clivealive

Thank you for that. The information out there is overwhelming

clivealive profile image
clivealiveForum Support in reply to JetPlane

It should not be "overwhelming" to your doctor - all he has to do is look up the British National Formulary (BNF) guidelines on the treatment of Pernicious Anaemia/B12 deficiency and he will know what treatment to give.

Treatment for PA and non-dietary vitamin B12 deficiency is virtually the same.

The symptoms of PA are the symptoms of the B12 deficiency that it causes. If the cause isn't dietary then it is an absorption problem so you need to find another way of replenishing B12 initially. Most absorption problems aren't treatable but a few are - notably h pylori infection - which would mean that once that has been dealt with you would be able to absorb B12 from your diet so wouldn't need maintenance shots for life.

Sleepybunny profile image
Sleepybunny

Hi,

Have a look at this detailed reply I wrote on another thread recently. It has links to B12 articles, UK B12 documents, B12 book lists, B12 websites etc.

healthunlocked.com/pasoc/po...

JetPlane profile image
JetPlane in reply to Sleepybunny

Thank you. I will do

fbirder profile image
fbirder

You asked the correct question - "Why am I not absorbing B12?"

The doctor should have answered - "I don't know, but I'll assume it is Pernicious Anaemia and I shall treat it as such." Then started you on a course of loading doses.

Write to doctor and ask why you're not being treated for Pernicious Anaemia as thta is the most likely cause of your deficiency.

JetPlane profile image
JetPlane in reply to fbirder

Thank you.

I’m speaking to my doctor tomorrow but it was said that they can’t treat it as PA unless it’s diagnosed. I’ve had the bloods done now and have to wait three weeks for the results. I was told the docs are not licensed in the UK to do daily injections without a definite diagnosis of PA.

Sleepybunny profile image
Sleepybunny in reply to JetPlane

Hi again,

"was told the docs are not licensed in the UK to do daily injections without a definite diagnosis of PA. "

GPs may not be licensed to do daily injections but they are licensed to give every other day injections if neuro symptoms present.

In UK, GPs can also prescribe off license if they feel that it is in the patient's clinical interest although many are reluctant to do so for fear of being sanctioned.

Unlicensed Medicines

gmc-uk.org/ethical-guidance...

Diagnosis of PA in UK

May be your GPs need to look at this flowchart.

Flowchart from BSH Cobalamin and Folate Guidelines

stichtingb12tekort.nl/weten...

Flowchart outlines process for diagnosing PA and Antibody Negative PA in UK.

Is your GP aware that it is possible to have Antibody Negative PA and that Intrinsic factor Antibody test for diagnosing PA is unreliable sometimes?

If you look at bottom right of flowchart it suggests that doctors should consider continuing B12 treatment even if IFA test and other tests such as MMA, Homocysteine and Active B12 are negative if patient has responded clinically ( meaning their symptoms have improved).

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.

Both these tests can be unreliable.

It is still possible to have PA with a negative result in IFA or PCA test.

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

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

My understanding of the BSH Cobalamin and Folate Guidelines is that anyone who has B12 deficiency (of any cause, not just PA) with neurological symptoms should be on every other day loading jabs of B12 for as long as symptoms continue to get better then a jab every 2 months.

There is no time limit on these every other day loading jabs for those with neuro symptoms; if improvement in symptoms continues so should the every other day jabs.

BSH guidelines suggest possibility of a review of loading jabs after three weeks.

BSH Cobalamin and Folate Guidelines

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

Might be worth printing a copy of this and circling info that is relevant to you.

Do you have any neurological symptoms and if you do, does GP have a list of all of them along with all your other symptoms?

Symptoms of B12 Deficiency

pernicious-anaemia-society....

b12deficiency.info/signs-an...

b12d.org/admin/healthcheck/...

GPs look particularly for symptoms of Peripheral neuropathy PN so make sure you mention any symptoms suggestive of PN.

Link about PN

nhs.uk/conditions/periphera...

Inadequate treatment can lead to permanent neurological damage including SACD, sub acute combined degeneration of the spinal cord.

May be worth drawing GPs attention to this possibility if they are reluctant to treat you adequately.

Neurological Consequences of B12 Deficiency

PAS news item

pernicious-anaemia-society....

Letter to GP if being under treated for B12 deficiency with neuro symptoms

b12deficiency.info/b12-writ...

"I don’t think my doctor knows what he’s doing with this. "

Help for GPs.

Might be worth mentioning this to your GP.

1) PAS website has section for health professionals. Your GP can join PAS as an associate member and it is free for them.

pernicious-anaemia-society....

2) PAS website has section with useful leaflets that some on forum pass onto GPs eg

" An Update for Medical Professionals: Diagnosis and Treatment "

pernicious-anaemia-society....

You would need to be a PAS member to access these leaflets/articles.

PAS membership

pernicious-anaemia-society....

You do not need to have a confirmed diagnosis of PA to join PAS. It can take some people over 1O years to get a diagnosis.

PAS (Pernicious Anaemia Society)

Based in Wales, UK.

pernicious-anaemia-society....

PAS tel no +44 (0)1656 769717 answerphone

PAS support groups in UK

pernicious-anaemia-society....

Blog post about how PAS can support PAS members seeking PA diagnosis

martynhooper.com/2017/06/24...

Make sure your GP also tests you for Coeliac disease.

UK guidelines recommend testing for Coeliac if there is unexplained B12, folate or iron deficiency or a first degree relative has Coeliac disease.

If they do test you, make sure they do both recommended tests

1) tTG IgA which checks for an antibody to gluten

2) Total IgA which checks which patients have IgA deficiency

UK Gps often forget to do the Total IgA test. Patients who have IgA deficiency will need to have different tests for Coeliac disease.

NICE guidelines Coeliac Disease (2015 version)

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

Coeliac Blood Tests

coeliac.org.uk/coeliac-dise...

If you get Coeliac tests, GP will probably ask you to ensure you are eating plenty of gluten in more than one meal per day for several weeks before blood taken.

Some GPs forget to do this.

This is to ensure that there are plenty of antibodies to gluten in the blood.

Some patients with Coeliac may test negative on tTG IgA test if tehy have not been eating enough gluten prior to test.

Some forum members have reported benefits from going gluten free even if they are not Coeliac .

If gut issues present, have you been referred to a gastro enterologist? Gastro specialist should be able to spot signs of gut damage due to PA, Coeliac, H pylori and other gut conditions that may affect B12 absorption.

More info on that other thread I posted a link to.

JetPlane profile image
JetPlane in reply to Sleepybunny

This is brilliant. Thank you for your time in sending it to me. I was ploughing through sone of this last night and yes I have got brain neurological issues. I’ll make the doc aware later. It’s been hard because I’m going through menopause too and everyone has been telling me everything is due to that! But no I now believe it’s due to b12. It’s easy just because I’m in my 40’s to fob everything off saying it’s age. I’m on a mission to get as fixed as I can.

This group is fabulous and you may of all just helped change my life just by a bit of knowledge and the right care

Sleepybunny profile image
Sleepybunny in reply to JetPlane

As PA is being considered by your GP, may be worth joining and talking to them before you next speak to GP.

PAS office is open from 8am this morning (Thurs) and on some other mornings. best to phone them.

pernicious-anaemia-society....

From what you say I suspect your GP is one of the (sadly) many who lack understanding of PA, and B12 deficiency in general so probably a good idea to seek extra support from PAS.

They can suggest useful info to pass to your GP.

PAS membership costs about £20 for a year's basic membership.

Is there a local PAS support group close to you?

See link to PAS support groups in my other post. There are currently 15 in UK.

These can be a useful source of info on helpful GPs and good for emotional support.

If you live within reach of Durham, B12d.org holds support meetings near Durham.

b12d.org/event

Warnings

1) B12 deficiency is not always well understood by GPs and specialists so it pays to be well prepared for any appointments.

2) Some GPs are not able to cope well with assertive patients so be prepared for GP/patient relationship becoming strained and have a back up plan eg another GP surgery to go to.

nhs.uk/common-health-questi...

3) Best piece of advice I ever got was to always get copies of all my blood test results.

I am aware of forum members who have been told everything is normal/no action on blood tests when there are actually abnormal and borderline results.

nhs.uk/chq/pages/1309.aspx?...

4) You may have the misfortune to be in one of the areas of UK whose local guidelines on treatment of B12 deficiency are out of date.

I suggest tracking down local area NHS guidelines on treating B12 deficiency and comparing them to national guidelines eg BSH, BNF, NICE CKS. It could be that your GP is being constrained by local guidelines.

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.

Other UK B12 documents

BNF

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

BNF guidance on treating b12 deficiency changed recently.

pernicious-anaemia-society....

BNF Children

bnfc.nice.org.uk/drug/hydro...

NICE CKS

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

As you mention neuro symptoms, have you been referred to

1) a neurologist?

2) a haematologist?

NICE CKS link suggests GPs should seek advice from a haematologist for those who have B12 deficiency with neuro symptoms. Has your GP done this?

Don't expect wonders though as ignorance about B12 deficiency exists among specialists as well as among GPs. I just hope you are lucky and get one who understands B12 deficiency.

Unhappy with Treatment (UK info)?

Letters to GPs about B12 deficiency

b12deficiency.info/b12-writ...

I think it is sometimes more effective to put queries about treatment/diagnosis into a letter to GP.

In UK it's my understanding that letters to GPs are filed with medical notes so hopefully are less likely to be ignored than info passed on verbally or on photocopies. Letters also avoid face to face confrontation and if they reach GP before an appointment can give GP a chance to do their own research.

Can also be useful to follow up an appointment with a letter.

Letters could contain symptoms list, test results, relevant family and personal medical history, extracts from relevant UK documents, referral requests etc.

Keep any letters polite and as brief as possible and always keep own copies.

Writing letters may irritate some GPs but I gave up worrying about this when I realised I was headed for spinal damage and dementia if I didn't get treatment.

CAB NHS Complaints

citizensadvice.org.uk/healt...

HDA patient care trust

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

hdapatientcaretrust.com/

B12 books I found useful

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

Martyn Hooper is the chair of PAS (Pernicious Anaemia Society). Book does not show updated BNF info.

"Living with Pernicious Anaemia and Vitamin B12 Deficiency" by Martyn Hooper

Has several case studies.

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

Very comprehensive with lots of case studies. There is also a paediatric version of this book "Could It Be B12? Paediatric Edition: What Every Parent Needs to Know".

I also plan to read "Vitamin B12 deficiency in Clinical Practice" (subtitle "Doctor, you gave me my life back!" by Dr Joseph Alexander "Chandy" Kayyalackakom and Hugo Minney PhD.

Link about "What to do next" if B12 deficiency suspected

b12deficiency.info/what-to-...

Blood tests

b12deficiency.info/b12-test...

Macrocytosis

patient.info/doctor/macrocy...

Full Blood Count and Blood Film

labtestsonline.org.uk/tests...

patient.info/doctor/periphe...

Folate Deficiency

patient.info/doctor/folate-...

Iron Studies

labtestsonline.org.uk/tests...

If all else fails...

Some forum members resort to self treatment if they are unable to get adequate treatment. Personally I see this as an absolute last resort and only did it myself when I had exhausted every possibility of NHS treatment.

Risk Factors for PA and B12 Deficiency

pernicious-anaemia-society....

b12deficiency.info/what-are...

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

I'm assuming GP has discounted diet as a possible cause of B12 deficiency?

Do you eat plenty of B12 rich food eg meat, fish, shellfish, dairy, eggs, foods fortified with B12?

If yes, then diet as a cause is unlikely and it is more likely that there is an absorption problem in gut eg PA, Coeliac etc.

As well as PA and Coeliac, has GP tested you for H Pylori infection?

patient.info/digestive-heal...

Any exposure to nitrous oxide?

This is in gas and air mix used as pain relief in labour. Nitrous oxide is also used as part of anaesthesia in some operations and medical procedures. Nitrous oxide inactivates B12 in the blood and it can take time to build up levels after again after exposure to it.

gov.uk/drug-safety-update/n...

Any chance of internal parasites eg fish tapeworm? Do you ever eat raw fish eg sushi/smoked salmon etc?

One potential sign of fish tapeworm infection is an increase in eosinophils, a type of white blood cell (WBC). Eosinophil result can be seen on results for Full Blood Count (FBC) tests.

Are you on any medication that may affect levels of B12 and/or folate?

I'm aware that metformin, a diabetes drug. has been associated with B12 deficiency and some anti epileptic drugs(also used for migraine and pain relief) such as gabapentin have also been associated with low B12 and low folate in some studies.

There are other drugs that have been linked with low B12 levels. Any concerns over medication should be discussed with GP or specialist. Pharmacists may also be a good source of info.

More about SACD, sub acute combined degeneration of the spinal cord

PAS article about SACD, sub acute combined degeneration of the spinal cord, access to PAS members only.

pernicious-anaemia-society.... See page 2 of articles.

Blog post from Martyn Hooper's blog, mentions SACD

martynhooper.com/2010/09/21...

Sleepybunny profile image
Sleepybunny in reply to JetPlane

Hi,

"At what level can neurological things go wrong? What level is classed as dangerous or low? "

I had many typical symptoms (over 40) affecting multiple body systems and including many neurological symptoms with most b12 results 300 - 500 ng/L ;well within normal range.

Many GPs and specialists do not appear to realise that it is possible to have severe B12 deficiency with results that are well within normal range.

It is possible to have Functional B12 Deficiency. This is where there is plenty of b12 in the blood but it's not getting to where it's needed in the cells.

Functional B12 Deficiency is mentioned in this next link.

b12deficiency.info/b12-writ...

See NEQAS Alert link in above link.

"told my level was 116 (I was told this was just a bit low) "

If you mean 116 ng/L that is really low. I'll be surprised if you're still walking at that level.

Sometimes tests can use pmol/L which is a different unit of measurement.

Different areas of UK will have different reference ranges.

A typical range for serum B12 would be 180 - 900 ng/L.

BSH guidelines suggest treating patients whose level is under 200ng and anyone who is symptomatic with a level above 200 ng.

From your GPs comment I suspect you are living in one of the areas of UK that has a really low reference range for B12 or your GP is lacking in expertise with b12 deficiency.

See these blog posts about UK areas with really low reference ranges.

Interesting comments below post and some are very sad.

b12deficiency.info/blog/201...

b12deficiency.info/blog/201...

Gloucestershire is an area that forum members report has out of date guidelines.

If you're in an area with a really low reference range and out of date local guidelines, that's a double whammy.

Martyn Hooper's PA Blog

martynhooper.com/

May be stories relevant to you on these blogs.

JetPlane profile image
JetPlane in reply to Sleepybunny

Thank you. I’m going to find out what the measure unit was in. All you info is super helpful

Sleepybunny profile image
Sleepybunny in reply to JetPlane

Access to medical records (England)

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

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

Many UK GP surgeries have online access to a summary of results/records. Look on your GP surgery website for Patients Access/Online Access/Emis Access.

My understanding is that you can also request access to paper files.

Worth looking up GDPR legislation which came into force I think in 2018.

bma.org.uk/advice/employmen...

If you find any of the info useful, please pass it on to someone else who needs it.

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