Examination: Diabetic Neuropathy (Foot)

Who you are:
You are working as a Foundation Year 2 doctor in GP Surgery

Who your patient is:
Mr. Arnold Pearson, a 56 old man who has come for annual review.

Other information you have about the patient:
Patient has had diabetes type 1 for the past 10 years and he is on Insulin.
HbA1c last year 62mmol/L
Eye examination demonstrates dots and blots hemorrhages.
He is awaiting review by the ophthalmologist.

What you must do:
Take a focused history, perform relevant examination and discuss management with the patient.

Patient Information
You have had burning sensation for long time
You take Insulin
You have had diabetes for the past 10 years
You have blurry vision.

On Examination:
Loss of sensation below mid-shin bilaterally
His gait was high stepping gait.

Questions
What are you going to do for me?
What is wrong with me?

Who you are:
You are working as a Foundation Year 2 doctor in a general medicine out-patient clinic.

Who your patient is:
Mr Robert Smith, a 40-year-old gentleman who has come for annual review.

Other information you have about the patient:
He has had Diabetes Mellitus for the last 5 years. 10 months ago he had some HbA1c tests done which were as follows:

HbA1c is 72% (normal HbA1c is <48mmol/L)
Neurological examination was normal.

What you must do:
Examine the lower limbs, perform examination of the lower limbs and discuss management with the patient.

Who you are:
You are working as a Foundation Year 2 doctor in GP Surgery

Who your patient is:
Mr Robert Smith, a 56-year-old gentleman who is known diabetic type-1. He is on insulin but does not take this medication regularly. He is also not going for regular follow up.

Other information you have about the patient:
URINE ANALYSIS
Glucose ++++
Protein +++
Ketones +ve
Nitrites –ve
Fundoscopy Dot and blot haemorrhages

On examination:
Loss of touch sensation upto the knees bilaterally

Observations
BP 140/80, HR 89, RR 14,. T 36.7

He has been referred to the opthalmologist but he is still waiting for the appointment.

What you must do:
Take a focused history to assess for the complications of diabetes. Talk to patient about life style changes, advise him to go for ophthalmology follow and discuss further management with the patient.

Patient Information

  • Opening sentence: Doctor I’ve got this funny feeling in my legs.
  • Jane/Robert Smith, 40 year old man. You have had diabetes for the past 5 years which is diet control only.
  • The doctor is coming to take a history from you
  • You are lying on a hospital bed and you are wearing a hospital gown
  • You do not know your normal blood sugar levels
  • Your last annual review was 3 years ago
  • You were referred to the ophthalmologist but you never went for the appointment.
  • You have tingling or numbness in your legs
  • And sometimes your feet feel cold
  • You are worried about amputation because a friend of your with diabetes had an amputation due to complications
  • You have loss of all modality of sensations below the mid shin
  • You have a glucometer; you know how to use it but you do not always use it
  • You have got diabetes
  • You take simvastatin once a night for high cholesterol
  • You are married with 2 children
  • You live with your wife/husband
  • You are both retired. You used to work as a bus driver and your partner used to work as a school teacher.
  • You take a dog for a walk everyday but lately you have been finding it difficult due to these pins and needles in your legs.
  • Both of your children are grown up and live on their own
  • Today you have come for your annual follow up because you are scared of having amputation of your legs.
  • When the doctor examines you, you have loss of sensations below the mid shin on both legs and fungal infection between the toes.

Scenario A:

  • You have diabetes Type II that is on diet control.
  • On Examination:
    • You have got loss of all sensation modalities upto knee level on both legs.
  • All observations are normal

Scenario B:

  • You have insulin dependent diabetes.
  • You are on insulin long acting (actrapid once a day in the morning) and short acting (novrapid 3 times a day).

Scenario C:

  • You have got non-insulin dependent diabetes.
  • You are taking Metformin 500mg twice a day

Scenario D:

  • Patient opening sentence “ I’m here to be told off”
  • Doctor: No, I will not be telling you off ,we are just going to have a chat about what you need to do”

Questions:

  • Will the same thing happen to me like my friend?
  • Is everything fine doctor?
  • What are you going to do for me?
  • What is the worst thing that can happen to my legs?

Scenario E:

  • Everything is normal, no sensory loss of the legs and you are not worried about anything.

Setup

Equipment:

  • Tuning Fork 128Hz
  • Cotton wool
  • Neuropin
  • Tendon hammer
  • Sharps bin

Emotions and attitudes: Normal

Examiner’s prompt:

  • If the candidate wants to perform Fundoscopy (eye examination) tell them fundoscopy is normal
  • Patient should have loss of sensation below the mid shin bilaterally and fungal infection between the toes.

Approach

  1. GRIPS- Loud, confident, smile, shake hand, maintain eye contact.
  2. Paraphrase:
    • I understand you have come for routine follow-up.
    • How are you doing?
    • Do you have any concerns since your last annual review?
  3. History of diabetes:
    • How long have you had diabetes?
      -Which type of diabetes do you have?
    • Are you on any regular medications?
    • Are you compliant to your medications?
    • Is your Diabetes well controlled?
    • How often do you check your blood sugar levels?
    • What are your normal blood sugar levels?
    • When was your last annual review?
    • How have you been since your last annual review?
    • Were you referred to the opthamologist and were you referred for your annual eye check up.
    • Is he under the specialist review?
  4. History of complications;
    1. Diabetic retinopathy Any visual problems?
    2. Peripheral Neuropathy Any numbness, tingling or burning sensation in the feet and hands?
    3. Diabetic nephropathy- any swelling of legs or face?
    4. Ask about complications:
      • IHD
      • stroke
      • intermittent claudication- any pain in your legs while walking?
  5. Lifestyle (few questions regarding lifestyle)
    • Regular feet inspection
    • Do you smoke?
    • Do you drink alcohol?
    • diet –
      • How is your diet?
      • Have you ever been referred to a dietician?
    • Do you normally do exercise
  6. General Health: Do you have any other medical problems other than diabetes?
  7. Is there any particular thing that you are worried about?
    1. Reassure them
    2. I will examine you and I will feel your feet.
    3. Give advice on how to prevent the complications

Examination

Take permission from the patient before you begin.

  1. Gait + look inside and on the side of the shoes
  2. Have a look inside the shoes and under the sole as well.
  3. inspection
  4. check the soles (pressure ulcers) and between the toes (fungal infection).
  5. temperature
  6. tenderness (calf)
  7. pulses – Dorsalis pedis artery, posterior tibialis artery.
  8. CRT (press for 5 seconds)
  9. Neurological (touch sole with monofilament, pinprick,position, vibration, reflexes).

Management

  • Explain the findings to the patient i.e. loss of sensations on the sole and upto knee or midshift or ankle or both sides
  • You can sustain cuts or break wihtout knowing about it. This condition is called diabetic peripheral neuropathy.

Diabetic foot care:

  1. Inspect the feet daily-any swelling, skin breaks, colour change, any numbness. Sometimes it might be difficulty see the bottom of feet, you can try and use a mirror.
  2. Cuts or wounds may go unnoticed so advise to inspect feet regularly
  3. Foot wear: comfortable shoes
  4. Avoid walking bare footed
  5. Refer to podiatrist ( would you be happy if I refer you to these specialist?)
  6. Advise to control blood sugar
  7. Wash feet everyday and make sure you dry them

Perform Investigations:

  1. Hb A1C: Will show the blood glucoese control ver 3 months period
  2. Observations:Blood pressure,pulse
  3. Fundoscopy: to check for any changes at the back chamber of the eye.
  4. Blood tests (FBC, U&Es)
  5. ECG
  6. Refer to ophthalmology, if he has not been referred.
    7:Urine test (to check if he is losing any proteins in the urine which may suggest kidney problems)

Lifestyles changes

  • Smoking
  • Exercise
  • Alcohol.

Referral to diabetic support group
Refer to a diabetic nurse
Refer to the ophthalmologist.

Advice about balanced diet.
Offer a diet sheet.
Offer leaflets about diabetic foot complications.

1 Like

65 years old, Andrew, came to the GP clinic, because he has a concern. He is diabetic.
Take hx, do relevant examination and talk to him about management.

Focused hx (2 min)

  • Hi, Andrew?
  • How are you doing?
  • I’m dr…, I’m a junior doctor here, can I confirm your age please?
  • I can see you are coming for follow-up? (Yes)
  • How can I help you today? (Dr, I am worried to lose my foot)
    Note: Do not say (Don’t worry) because you do not know anything yet, you need to take hx and examine first.
  • I’m very sorry, may I ask why you are worried?
    (Because my friend is diabetic and lost his foot)
  • I’m sorry about your friend, how is he doing now?
  • Can we have a chat about your health in order to be able to establish things in a better way?
  • I can see from my notes, you are diabetic, can you please tell me more about your diabetes?
  • Hx of diabetes
    • Since when?
    • How is it managed?
    • Any medications for it?
    • May I ask which medications?
  • (Explore medications)
    • For how long?
    • Dosage?
    • Are you taking it as prescribed?
  • Do you measure it?
  • Is it controlled?
  • Do you go for follow up?
  • Complications:
    • 1st (concern) → Any pain, numbness, injuries, tingling in your foot?
    • Any chest pain, SOB?
    • Any vision problems?
    • Any pain while passing urine?
  • I’m really sorry for bothering you with too many questions. Apart from diabetes, any other medical conditions ?
  • DESA
    • Could you tell me more about your diet?
    • Do you smoke by any chance?
    • Do you drink alcohol?
  • MAF
    • Apart from (insulin), do you take any other medications?
  • Any allergies?
  • You do not need to ask psychosocial
  • Before we move forward to examine, is there anything you would like to ask?

Who are you?
You are the F2 in the GP surgery.

Who is the patient?
Mr. Andrew Jones, 65 year old, presented with a concern.

What you must do:
Take focused history, perform relevant examination and address the patient’s
concerns.

Focused History:

  1. Confirm patient’s details
  2. Identify concern: worried about diabetic foot disease as his friend lost his foot
    due to diabetes.
  3. Analyse history of diabetes: since when? How is it managed? Do you monitor
    your blood sugars? Is your diabetes well controlled? Do you have regular
    follow ups?
  4. Ask about current treatment: since when? Dose? Are you taking at as
    prescribed?
  5. Explore complications of diabetes: foot pain? Foot numbness? Injuries to the
    foot? Chest pain? Blurring of vision?
  6. Past medical history, medication history and allergies
  7. Diet
  8. Smoking and alcohol intake

Examination:

  1. Start with thanking the patient for answering your questions
  2. For the patient: Explain why are you examining the patient
  3. For the patient: Explain that the examination won’t be painful but could be
    uncomfortable
  4. For the patient: Explain what you are going to do during the examination
  5. For you: Explain how you want the patient to be positioned
  6. For you: Explain how you want the patient to be exposed
  7. For you: Explain the contraindications of the examination if present
  8. For both of you: Inform the patient that a chaperone will be present
  9. For both of you: Inform the patient that you will maintain their privacy
    10.For both of you: Finally gain consent by asking ‘ Do I have your consent to
    proceed?

“Thank you Mr. X for answering my questions. Now I would like to record your blood pressure, heart rate, respiratory rate, temperature and oxygen saturation. I will also perform a general physical examination. Now I would like to examine your feet. I will be looking at your feet and assessing the blood flow and sensation in your feet. The examination won’t be painful but might be a bit uncomfortable. For the purpose of the examination, I would like you to be bare below the knee. I will examine you while you are seated on the bed. I will have a member of the medical team with me as a chaperone and I will ensure your privacy. Are you happy for me to proceed?”

Once you gain consent, you can start to examine the patient. Your examination will consist of:

  1. Assessing the gait
  2. Assessing the patient’s shoes
  3. Inspection of the foot
  4. Palpation of the foot
  5. Sensory examination

  1. Assessing the gait
    • Look at the patient’s gait while he is moving from the chair to the couch.\
  2. Assessing the patient’s shoes
    • Ask the patient if it’s comfortable
    • Ask the patient if the size is accurate
    • Look inside the shoes for holes
  3. Inspection of the foot
    • Inspect for muscle wasting, redness, deformity, scars, swelling, ulcers.
    • Assess for hair loss.
    • Assess the nails.
    • Look in between the toes for fungal infections.
    • Assess the heels.
  4. Palpation of the foot
    • Compare the temperature of both feet.
    • Palpate the feet for tenderness.
    • Palpate peripheral pulses.
  5. Sensory examination
    • Assess fine sensation using a cotton swab and monofilament.
    • Assess pain, vibration and joint position sensation.