OSCE Flashcards

0
Q

Causes of Mitral Regurgitation

A

Ischaemic cardiomyopathy
Valvula - infective endocarditis / rheumatic fever
- connective tissue disorders (EDS, margins, SLE)
Papillary muscle dysfunction - post-MI
Functional - cardiac wall dysfunction
- dilated cardiomyopathy / ventricular aneurysm
Congenital
Atrial myxoma
Trauma and iatrogenic post surgery

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1
Q

Causes of Aortic Stenosis

A

CBA

  1. Calcification due to old age
  2. Bicuspid valve
  3. Acute rheumatic fever
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2
Q

What is the management of aortic stenosis?

A

Treat if asymptomatic:

  • Valve replacement definitive
  • Percutaneous balloon valvuplasty if unsuitable

Once symptomatic 2 year prognosis unless treated!

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3
Q

What options are available for valve replacement in aortic stenosis?

A
  1. Type of surgery
    • Endovascular
    • Open
  2. Type of valve
    • Mechanical (lasts longer but need for warfarin)
    • Tissue (only last 10-15 years but DON’T need warfarin)
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4
Q

Presentation of AF

A
  1. Irregular palpitations
  2. SOB
  3. Clinical consequences (stroke / peripheral ischaemia)

Dizziness, syncope, angina

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5
Q

Acute HF management

A

ABCDE and inform a senior

Sit upright and give O2
Furosemide IV (80mg)

Consider:
IV Nitrates
Morphine
Cardiac support

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6
Q

Management of chronic heart failure

A

BIOPSYCHOSOCIAL..

Conservative
- Reduce risk factors / Vaccinations

Medical

  • Prognostic: Beta-blocker, ACEi and Spirolactone
  • Symptomatic: Diuretics and Digoxin

Surgical

  • ICD
  • Cardiac resynchronisation therapy
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7
Q

What scoring system is used in AF?

A

CHA2DS2 VASc

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8
Q

What does 6/6 and 4/60 mean from a Snellen chart

A

6/18 what the patient can read at 6 meters can be read by someone with no impairment at 18 meters

4/60 what the patient can read at 4 meters can be read by someone with no impairment at 40 meters

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9
Q

In visual acuity what should you do if the patient can’t read the biggest letter at 6 meters.

A
  1. Move closer to chart 1 meter at a time
  2. Count fingers (CF)
  3. Hand movements (HM)
  4. Flashlight - perception of light (PL)
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10
Q

When would you use a pinhole occluder

A

If 6/6 is not achieved. Tests central vision.

An improvement indicates a refractive problem that may be correctable with glasses.

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11
Q

What would suggest background retinopathy

A

Microaneurysms, blot haemorrhages and hard exudates

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12
Q

What would suggest preproliferation retinopathy

A

Cotton wool spots.

Also large blot haemorrhages and gross venus abnormalities.

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13
Q

What would suggest proliferation retinopathy

A

New vessel formation

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14
Q

Causes of claudication without PVD

A

Spinal claudication, anaemia and beta-blockers

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15
Q

ABPI ranges

A

0.9-1.1 - normal

<0.3 - critical limb ischaemia

16
Q

What changes might evident in a diabetic foot

A

Chronic:

  • Vascular (pale or erythematous with absent pulses)
  • Neurological (dry, cracked, atrophied skin and hair loss)
  • Musculoskeletal (hammer toes, high arch and charcots joint)

Acute:

  • Ulcers
  • Infection (cellulitis and osteomyelitis)
  • Critical limb ischaemia (gangrene and amputation)
17
Q

What is the approach to management for a diabetic foot?

A

Ulcer management:

  • Clean
  • Investigate for infection
  • Dress
  • Compress
  • Elevate
  • Patient education

If required:

  • Manage any infection
  • Vascular team involvement
18
Q

Reasons for a Kocher incision

A
  • Cholecystectomy
  • Access to biliary tree and liver

Chevron or Mercedes expansion

  • Oesophagus
  • Stomach
  • Kidney
  • Liver
19
Q

Causes of hepatomegaly

A

Cancer - HCC or mets
- Lymphoma, leukaemia or myloproliferative disorders
Congestion - HF or Budd-Chiari
Infection - Hepatitis, EBV mononucleosis or malaria
Infiltration - Fatty liver, haemachromatosis, amyloidosis or sarcoidosis
Immunological - Autoimmune hepatitis, PBC or PSC

20
Q

Causes of splenomegaly

A

Massive - CML, myelfibrosis or malaria

Smaller - IE or rheumatoid

21
Q

Causes of hepatosplenomegaly

A

Blood disorder - leukaemia, lymphoma, myeloproliferative disorder and haemolytic disorder
Infiltration - sarcoidosis or amyloidosis
Infective - hepatitis, EBV and malaria

22
Q

Causes of ascites

A
  • transudative
  • infective
  • malignancy

Due to portal hypertension, reduced protein or excess fluid.

23
Q

Causes of renal enlargement

A

More commonly unilateral

  • Malignancy
  • Simple cyst

More commonly bilateral:

  • PCKD
  • Hydronephrosis
  • Amyloidosis
  • Tubular sclerosis
24
Q

Causes of dupytrons contractions

A
  1. Ideopathic
  2. Alcoholic liver disease
  3. Diabetes
  4. Epilepsy and phenytoin
  5. Vibrating tools
25
Q

Causes of gynecomastia

A

Physiological:

  • neonates
  • puberty
  • old age (dx of exclusion!)

Pathological:

  • spironolactone, digoxin, cimetidine and izoniazide
  • opiates and cannibis
  • excess oestrogen (liver disease, thyrotoxicosis and lung, testicular and adrenal cancer)
  • reduced testosterone (orchitis, trauma and kleinfelters)
26
Q

How can you differentiate a spleen from another mass (e.g. Kidney)

A
  1. Can’t get above it
  2. Moves with respiration (down and across)
  3. Splenic notch palpable
  4. Dull to percuss
  5. CAN’T ballot
27
Q

Causes of AF

A
Idiopathic
Cardiovascular:
- valvular (in particular mitral)
- chronic hypertension
- ischaemic heart disease or heart failure
Systemic
- alcohol
- sepsis
- hyperthyroid
- some medications e.g. Theophylline
Pulmonary
- COPD and emphysema
- pneumonia
- PE
28
Q

What blood tests would be involved in a ‘liver screen’

A

LFT, U&E (renal function and urea), FBC, BM!, Clotting ?crossmatch or group and save

  • viral load
  • copper
  • ferritin
  • autoantibodies (anti-smooth muscle / mitochondrial / pANCA)
  • alpha fetaprotein
29
Q

What is the child-Pugh score

A

Prognosis of chronic liver disease
5-6 A
7-9 B
10+ C

  • encephalopathy
  • ascites
  • bilirubin (34 and 51 (multipuls of 17…))
  • albumin
  • INR
30
Q

What is normal maintenance fluids

A

1L 0.9% sodium chloride
2L 5% dextrose

With 20mmol K in each

31
Q

What are common complications of a misplaced NG tube

A
Aspiration of food
- Pneumonia
Empyema
Pneumothorax
No feed given
32
Q

When should an NG tube be checked with a p strip

A

When it’s first put in
If suspicious it may have moved for any reason
Before feeds
Everyday when on continuous feeds