2nd year stuff Flashcards
what is the first line treatment for acne rosacea
topical metronidazole
what is the first line treatment for acne vulgarisms
benzyl peroxide or topical clindamycin
what is epidermolysis bullosa
inherited breakdown of anchoring between epidermis and dermis
red, flaky, crusty patches skin patches covered with silvery scales normally on elbows, knees, scalp and lower back k
psoriasis
treatment of psoriasis
corticosteroid or vitamin D3 analogue cream
coal tar/keratolytic
what causes a neurogenic pruritus
an effect on the CNS receptors, thyroid disease or malignancy
how are autoimmune blistering conditions confirmed
diagnostic biopsy with immunofluorescence
what is toxic epidermal necrolysis
severe, acute superficial desquamating eruption secondary to a drug
how does toxic epidermal necrolysis
fever
malaise
painful erosions
generalised erythema
what do meissner’s corpuscles detect
vibration
what do pacinian corpuscles detect
pressure
what are risk factors for skin cancer
childhood sunburn occupation related to high sun exposure sun beds type 1 skin pre-cancerous lesions Fix of skin cancer immunosuppressed exposure to radiation treatment
why are creams more likely to cause contact sensitisation than ointments
they contain preservatives
what condition is dermatitis herpetiformis associated with
coeliac
which type if insulin do you give once a day
basal (long acting)
which diabetic drug is weight neutral
DPP4 inhibitors (gliptins) and metformin
which diabetic drugs cause weight loss
GLP1 agonists
which diabetic drug causes glycosuria
SGLT2 inhibitor
‘strawberry milkshake coloured blood’
hyperlipidaemia
what are features of hyperparathyroidism
bone disease renal stones GI complications depression lethargy seizures weakness fatigue calcification of aortic and mitral valves
what are features of hypoparathyroidism
neuromuscular irritability Chvostek's sign Trousseau's sign emotional lability anxiety confusion psychosis basal ganglia calcification cataracts
which hormone peaks before ovulation
LH about 12 hours before
what hormone do you test to check for ovulation
progesterone
what is the pathophysiology of Paget’s disease of bone
increased abnormal osteoclastic reabsorption followed by increased osteoblastic activity
results in abnormal bone structure with reduced strength and increased fracture risk
presentation of Paget’s disease of bone
old man bone pain (pelvis, lumbar spine, femur) deformity deafness compression neuropathies
how is Paget’s disease treated
bisphosphonates
what do osteoclasts do
breakdown bone for maintenance, repair and remodelling
what do osteoclasts do
synthesise and lay down new bone
what causes osteomalacia
vitamin D deficiency (malabsorption, poor diet, lack of sunlight)
what is the pathophysiology of osteomalacia
abnormal softening of the bone due to deficient mineralisation of osteoid (immature) bone
what are symptoms of osteomalacia
bone pain
tenderness
fractures (femoral neck)
proximal myopathy
what is the treatment for osteomalacia
vitamin D therapy with Ca and phosphate supplements
how do you assess the risk of osteoporosis
DEXA scan
features of grave’s
gradual onset mild/moderate thyroid enlargement diffuse enlargement on palpation hyperdynamic tachycardia heat intolerant eye disease etc
TFTs in grave’s
raised T4 and fT3, suppressed TSH
features of Hashimoto’s
slow onset firm and well-defined lymph nodes bradycardia cold intolerance no tremor hoarseness dysphagia etc
TFTs in Hashimoto’s
low T4 and fT3
raised TSH
symptoms of De Quervain’s thyroiditis
acute, painful moderate swelling smooth, diffuse and tender bilateral swelling transiently hyper dynamic and tremor painful dysphagia
TFTs of De Quervian’s thyroiditis
raised T4 and fT3
suppressed TSH
what is the commonest thyroid cancer
papillary thyroid cancer
which thyroid cancer has a poor prognosis
medullary thyroid cancer
what is the purpose of thyroid remnant ablation
removes residual tissue to prevent recurrence
always combined with surgery
what conditions are present in MEN1
hyperparathyroidism
prolcatinoma
pancreatic tumour
what conditions are present in MEN2a
parathyroid hyperplasia
medullary thyroid carcinoma
phaeochromocytoma
what conditions are present in MEN2b
marfanoid body habitus
mucosal neuroma
medullary thyroid carcinoma
phaeochromocytoma
what is the function of oxytocin
breastfeeding let down reflex
induction of labour
how are ketone bodies generated in DKA
lipolysis
which drug classes are associated with reactivation of latent TB
TNF alpha inhibitor (etanercept, infliximab)
what causes cubital tunnel syndrome
compression of ulnar nerve n cubital fossa
presentation of cubital tunnel syndrome
tingling in ring and pinky finger
how do you treat necrotising fasciitis
debridement + penicillin + clindamycin
which DMARD causes interstitial pneumonitis
methotrexate
which drug used in the management of rheumatoid conditions can cause black tarry stool
NSAIDs
gastric ulcer
which rheumatoid drugs are nephrotoxic
gold
penicillamine
which DMARD causes bone symptoms
prednisolone
what type of hypersensitivity is RhA
type IV
what is the pathophysiology of RhA
synovial fills with macrophages, fibroblasts and giant cells
the membrane expands and erodes bone and cartilage
what are signs of poor prognosis in RhA
pre-menopausal status smoker young onset high inflammatory markers at onset positive RF
what are X-ray signs of OA
loss of joint space
osteophyte formation
subchondral sclerosis/cysts
where are hederden’s and Bouchard’s nodes found
DIP and PIP respectively
20-55 years old well patient back/buttock/thigh pain normally neurology pain changes with position of movement
simple backache
mechanical
unilateral leg pain paraesthesia in same distribution leg>back pain abnormal neurology weakness reflex/sensory changes nerve stretch pain
nerve root pain
osteoporosis/long term steroid use premature menopause cancer Hx weight loss unremitting pain sleep loss under 20 or over 55
serious spinal pathology
saddle anaesthesia
altered bladder control
bowel incontinence
gait disturbance
cauda equina syndrome
treatment of carpal tunnel
corticosteroid injection, splint, workplace task modification, standard open carpal tunnel release, arthroscopic
cubital tunnel treatment
splint
neurolysis
anterior transposition
dupuytren treatment
radiation therapy
needle aponeurotomy
collagenase injection
trigger finger treatment
corticosteroid injection
surgery
which nerve is most likely to be damaged in humeral shaft fractures
radial nerve
which nerve is most likely to be damaged in a supracondylar fracture of distal humerus
median nerve damage
how does dupuytren’s contracture develop
nodule develop
during active contractile phase, contraction forms because of contractile myofibroblasts within the lesion
why is hydroxyquinolone used as a last-line treatment in RhA
rarely causes retinopathy
Charcot foot is often associated with which condition
diabetes
how does Charcot arthropathy present
unilateral ankle swelling with no pain
slight erythema
paraesthesia of the foot ankle instability
what are typical features of seronegative arthritis
sacra-iliac joint erosions
soft tissue swelling
irregular peri-articular new bone formation
pencil-in-cup deformity
spinal ligament ossification (syndesmophyte)
how does RhA present
symmetrical polyarthritis usually affecting small peripheral joints with red hot swelling and raised inflammatory markers
which antibody is associated with RhA
anti-CCP
which antibody is associated with APS
anti-cardiolipin
which conditions is investigated by anti-centromere antibodies
systemic sclerosis
features of ankylosing spondylitis
acute pain and stiffness of cervical spine
bilateral foot pain
trouble breathing
signs of prolapsed disc
pain and numbness in spinal nerve distribution with foot drop