Medicine Flashcards
What is the cushing’s reflex?
Hypertension and Bradycardia (Usually Hypertension and Tachycardia go hand in hand)
Raised ICP
Migraine Treatment:
Acute
Prophylaxis
Acute: Triptan + NSAID/ Triptan + Paracetomal (5 HT Agonists)
Prophylaxis: Topiramate or propranolol (5 HT Antagonists)
Propranolol - Avoid if patients are asthmatic or have heart block etc.
Treatment resistant Migraine Treatment
5-8 Weeks acupuncture
Gabapentin
Menstrual Migraine - Zolpitriptain and Frovatriptan
Hypertension Treatment Pathway
<55 year old
>55 year old / black people
<55 year old
i) ACE-i and ARB
ii) CCB
iii) Thiazides
iv) Spironolactone / High-dose thiazide diuretic
v) Alpha/ Beta Blocker
>55 year old / Black
i) CCB
ii) Thiazides
iii) Spironolactone / High-dose thiazide diuretic
iv) Alpha/ Beta Blocker
Stages of hypertension
1) Clinic- 140/90 mmHg
Home - 130/85 mmHg
2) Clinic - 160/100 mmHg
Home - 150/95 mmHg
Severe Hypertension) Clinic - 180 mmHg
BP - 110mmHg
Risks of dialysis
Four main ones and ions responsible
Calcium Related (and phosphate)
Circulatory Disease
Cardiovascular Siease
Cerebrovascular disease
Peripheral Vascular Disease
Phosphate target in:
Normal Patient
And Renal Patients
What is the risk?
Normal patient: 1.0-1.1
Renal patient: 1.7
Severe promoter of cardiovascular disease
Polycystic kidney disease mutations
Disease relation?
Proteins effected?
Predominant types of mutation?
Disease relations -
Berry aneurysms (PKD1 +PKD2)
liver cysts
diverticular disease
Aortic disease
Adrenal Disease
Proteins: Polycystin 1 and Polycistin 2
Mutations:
Most inherited
15% Mutations sporadic / mosaicim
85% Mutations inherited
Which mutation confers worse prognostically for PKD?
What type of mutaton confers worse progonstically?
PKD1!! - ESRF by the 40s
PKD2 - ESRF by the 60s
Deletions are worse than point mutations
Which drug has shown benefit in reducing growth of polycystc kidneys?
Mechanism?
Side effects?
Tolvaptan
Downregulates cAMP pathway leading to reduction in cyst size.
Side effects: Thirst, Polyuria, Dysuria, Dehydration
What phenotypic characteristics of PKD confer worse diagnosis?
Male
Hypertension
Deletion
Urological complications
Multiple Cysts
Causes of hypertrichosis? (4)
Drugs - minoxidil, cyclosporin, diazoxide
Congenital hypertrichosis
Porphyria Cutanea Tarda
Anorexea Nervosa
Hepatitis E is associated with which food products?
Type of virus?
Particularly at risk group?
Seafood
Pork
Hep E is a RNA hepevirus
20% mortality in pregnant women
Ciclosporin
MOA?
Side Effects?
Indications
Calcinuein inhibitor preventing IL2 mediated T Cell proliferation
Side Effects - Everything goes up.
Fluid retention, hyperkaemia, IGT, Gingival hyperplasia, Hypertrichosis, hyperlipidaemia.
Hepatotoxic
Indications - Transplant, RA, psoriasis, UC, pure red cell aplasia
Drug causes of hyperkalaemia
Potassium sparing diuretics, Ace-i, ARBs, ciclosporin, heparin
Watery eye
Swelling of the medial canthus
Dx
Mx
dacryocystitis - lacrimal sac infection
Mx - systemic abx (not topical),
If accompanied by periorbital cellulitis - Iv Abx too
Inflamed breast appearance?
Inflammatory breast cancer
Where cancerous cells block lymph drainage resulting in an inflamed breast appearance
Two examples of loop diuretics
Where do they act
On what do they act
SEs
Frusemide, bumetanide
Act on ascending limb
Block the Na, K, Cl transporter
SEs - hypotension, hyponatraemia, hypokalamia, hypocholoraemia alkalosis, hypocalcaemia, ototoxic, gout hyperglygaemia
Hyperemesis Gravidarum criteria
5% Pre Pregnancy Weight Loss
AND
Dehydration
AND
Electrolyte Imbalance
What is ABCD2?
What are the scoring points?
What is the scoring threshold plus intervention?
ABCD2 is the prognostic scoring algorithm for determining stroke following TIA
ABCD2
A ge - >60 Years 1 point
B - BP >140/90 mmHg 1 point
C - Unilateral weakness - 2 points
Speech disturbance - 1 point
D - Duration of symptoms
>60 minutes - 2 points
10-59 minutes - 1 point
Patient has diabetes - 1 point
Scoring threshold:
3 or less - Specialist assessment within 1 week of symptom onset
>4 - 300mg Aspirin daily
assessment within 24 hours
optimising of risk factors
Which antiplatelet therapy for stroke?
CHANCE Study- Shows greatest risk reduction in high risk TIA patients was seen in aspirin + clopidogrel
Then clopidogrel
Then aspirin + dypirimadole
Most common organism implicated in dog and cat bites?
Which antibiotic therapy?
If not tolerated?
Pasteurella Multocida
Antibiotic;
Co-Amoxiclav
Doxy + Met
What GFR level do you:
review metformin
stop metformin
Contrast studies- what do you do with metformin
Review:
< 45 ml/min
Stop:
<30 ml/min
Metformin should be stopped on day of contrast study and for 48 hours after





Reduced red discrimination
Central SCotoma
RAPD
Pain worse on eye movements