Orthopaedics and Rheumatology Flashcards
What type of crystals accumulate in gout?
Uric acid crystals
What are the risk factors for gout?
High meat/seafood/alcohol intake, male, older-age, thiazide/loop diuretics, aspirin, G6PD deficiency
What is the management of recurrent gout?
Allopurinol - A xanthine oxidase inhibitor that reduces uric acid levels
What is the management of acute gout?
NSAIDs, COXi (if increased risk of GI bleeds), colchicine or corticosteroids.
What type of crystals accumulate in pseudo gout?
Calcium pyrophosphate
What antibodies are seen in rheumatoid arthritis?
Anti-cyclic citrullinated antibodies and rheumatoid factor
What is the management of rheumatoid arthritis?
DMARD (methotrexate), corticosteroid (prednisolone) and NSAID.
What common skin complaint is reported in juvenile RA?
Salmon coloured rash on trunk/proximal extremities
What are the 3 regions of the body affected in polymyalgia rheumatica?
Neck, shoulder and pelvis
What condition is often seen alongside polymyalgia rheumatica?
Giant cell arteritis
What is Sjogren’s Syndrome characterised by?
Xerostomia (reduced salivary gland secretions) and keratoconjunctivitis sicca (reduced lacrimal gland secretions)
What antibodies are seen in SLE?
Antinuclear antibodies (ANA) and antiphospholipid antibodies (increase risk of venous/arterial thrombosis)
What are the 3 skin complaints first seen in SLE?
Malar butterfly rash, photosensitive rash and discoid rash
What type of tissue does scleroderma affect?
Connective tissue - causes hardening/thickening of skin, internal organs and blood vessels
What size muscular artery does polyarteritis nodosa affect?
Medium-sized (kidneys, brain, heart)
What autoimmune disorder causes raised red plaques on knuckles as well as muscle aches?
Polyarteritis myositis
What are the two most common causative agent of cellulitis?
Streptococcous pyogenes and Staphylococcus aureus.
What are the main symptoms of septic arthritis?
Acute joint pain, fever, erythema/warmth/swelling
What bones does osteomyelitis tend to affect?
Long bones i.e. in the leg
What causes bone erosion in osteomyelitis?
The leukocytes secrete enzymes to destroy the pathogen, but in fact erode the bone
What is a risk factor for osteomyelitis in a diabetic person?
A diabetic ulcer
What infections does reactive arthritis succeed?
GI/GU infections
What is the most common cause of reactive arthritis?
Chlamydia
What are the triad symptoms of reactive arthritis?
Arthritis of large joints, conjunctivitis/uveitis, GU inflammatory conditions - balantitis, urethritis