Samson Flashcards
Management of TMJ dysfunction
Reassure
Hearing loss+swimming+invisible TM
Ear wax
Management of Barotrauma
Refer to ENT
Management of Ear wax
Olive oil ear drops
Advice for doxycycline side effects
Take after meals
Commonest causes of UTI
E. Coli
Proteus
First line in hyperkalemia
10mls of 10% Calcium gluconate
Purpura+arthritis+abdominal pains +GI bleeding+/- Nephritis
HSP
Hereditary Epistaxis/menorrhagia/joint bleeding
Von willebrand
Lab features of Von willebrand
Normal PT
High aPTT
Prolonged bleeding time
Normal or mildly reduced factor 8 levels
Clotting profile in liver disease
High PT
High TT
High aPTT
Normal bleeding time
Another name for HSP
Autoimmune hypersensitivity vasculitis
Normal bleeding time
1-9 minutes
MOA of Von willebrand
Impaired platelet aggregation
When to transfuse
<7g/dl
Aplasia+immature blood cells
Myeloblastic syndrome
Fundal features of CRVO (commoner)
Intensely hyperemic
Flame shaped hemorrhages
- Dilated and tortuous retinal veins
Venous congestion is a hallmark of CRVO, with veins appearing swollen and twisted.
- Diffuse retinal hemorrhages
Flame-shaped or dot-and-blot hemorrhages distributed throughout the retina, resembling a “blood and thunder” appearance.
- Optic disc swelling
Edema of the optic disc due to increased venous pressure and ischemia.
- Macular edema
Swelling in the macula, leading to central vision loss, often detected on optical coherence tomography (OCT).
*Additional findings: Cotton wool spots (ischemia-related), neovascularization (in severe ischemic CRVO), and reduced visual acuity.
Fundal features of CRAO
Pale
Cherry red spots
Central Retinal Artery Occlusion (CRAO) is an ophthalmic emergency caused by a blockage of the central retinal artery, leading to sudden, painless vision loss. The key clinical features of CRAO include:
- Sudden, painless vision loss
Profound loss of vision in the affected eye, often reduced to light perception or worse.
- Pale retina with a cherry-red spot
The retinal ischemia causes whitening (pallor) of the inner retina, with the fovea appearing as a distinct cherry-red spot due to the underlying choroidal blood supply.
- Attenuated retinal vessels
Narrowed and sometimes interrupted retinal arterioles due to the obstruction.
- Relative afferent pupillary defect (RAPD)
Present in cases where the optic nerve is affected, indicating significant retinal ischemia.
Bilateral miosis+irregular pupils+non response to light but response to accommodation
Iritis/Uveitis
Gradual vision loss+inability to read even with glasses
Cataract
Upper homonymous quandrantanopia
Optic radiation -Temporal lobe
Lower homonymous quandrantanopia
Optic radiation -Parietal lobe
Non congruous homonymous hemianopia
Optic tract
Non congruous homonymous hemianopia
Optic tract