GP and primary healthcare Flashcards

(96 cards)

1
Q

Acne vulgaris

A

Acne vulgaris is a chronic inflammatory skin conditions affecting the face, back and chest.

Characterised by the blockage and inflammation of pilosebaceous unit (hair follicle)

Presents with non-inflammatory, inflammatory lesions (or a mixture)

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2
Q

Clinical features of acne vulgaris

A
  • Non-inflammatory lesions (comedones) must be present for a diagnosis
  • Papules and pustules (< 5mm)
  • Nodules or cysts (> 5mm)

Huge variety in clinical features depending on person and severity

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3
Q

Conservative management of acne vulgaris

A

Advice:

  • Avoid over-cleaning the skin
  • Use non-alkaline synthetic detergent cleansing product
  • Avoid oil-based comedogenic products
  • Treatment might irritate the skin at the start
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4
Q

Medical management for mild to moderate acne

A

1st line: 12 week course of any 2 of the following in combination:

  • Topical benzoyl
  • Topical antibiotics (clindamycin)
  • Topical retinoids (tretinoin adapalene)
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5
Q

Medical management for moderate to severe acne

A
  • 1st line: 12 week course of same medicines as above but different doses (NICE CKS)
  • Sometimes the combo topical creams combined with oral tetracycline and doxycycline
  • COCP as alternative to systemic abx for women
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6
Q

Acute stress reaction

A

Immediate and intense psychological response following exposure to traumatic event.

Appear within minutes of exposure and lasts from 3 days - 4 weeks after traumatic event.
If >1 month = PTSD

ICD10: https://icd.who.int/browse10/2019/en#/F43.0

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7
Q

Clinical features of Acute Stress Reaction

A

ICD10 criteria:
- Patient must have been exposed to an exceptional mental/physical stressor
- Exposure followed by immediate symptom onset (<1hr):

  • Social withdrawal
  • Dissociation
  • Anger
  • Despair/hopelessness
  • Inappropriate overactivity
  • Overwhelming anxiety/grief
  • Autonomic sypmtoms: tachycardia, sweating, flushing)

ICD10 book from Sheffield uni library and quesmed

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8
Q

Mangement of Acute Stress Reaction

A

1st line: trauma focused CBT, medications e.g. benozodiazepines for symptomatic relief

Consider differentials such as PTSD and adjustment disorder

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9
Q

Iron deficiency anaemia

A

Low Hb concentration in blood

Causes:

  • Dietary insufficiency, common in children
  • Loss of iron, e.g. heavy menstruation
    Inadequate iron absorption, e.g. IBD/Coeliac
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10
Q

Anaemia: Hb and Mean Cell Volume (MCV)

A

MCV = size of RBC

Women:
- Hb: 120 – 165 g/L
- MCV: 80-100 femtolitres (fL)

Men:
- Hb: 130 -180 g/L
- MCV: 80 - 100 fL
-

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11
Q

Causes of anaemia

A
  • Microcytic anaemia (low MCV)
  • Normocytic anaemia (normal MCV)
  • Macrocytic anaemia (large MCV)
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12
Q

Mmemonic for microcytotic anaemia

A

TAILS
T – Thalassaemia
A – Anaemia of chronic disease
I – Iron deficiency anaemia
L – Lead poisoning
S – Sideroblastic anaemia

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13
Q

Causes of normocytic anaemia

A

AAAHH

A – Acute blood loss
A – Anaemia of chronic disease
A – Aplastic anaemia
H – Haemolytic anaemia
H – Hypothyroidism

Anaemia of chronic disease often in CKD due to reduced erythropoietin production. Tx = erythropoietin

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14
Q

Causes of macrocytic anaemia

A
  • Megablastic (impaired DNA synthesis > large, abnormal cells): B12, folate deficiency
  • Normoblastic macrocytic anaemia: alcohol, reticulocytosis (usually from haemolytic anaemia or blood loss), hypothyroidism, liver disease, drugs (e.g. azathioprine)
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15
Q

Clinical features of anaemia

A
  • Tiredness
  • SOB
  • Headache
  • Dizziness
  • Palpitations
  • Worsening of angina, HF, PAD
  • IDA: pica, hair loss
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16
Q

Anaemia: signs on examination

A
  • Pale skin
  • Conjunctival pallor
  • Tachycardia
  • Increased RR
  • IDA: koilonychia, angular cheilitis, atrophic glossitis (smooth tongue), brittle hair + nails
  • Haemolytic anaemia: jaundice
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17
Q

Terms in iron-deficiency anaemia blood tests

A
  • Iron = ferric ions (Fe3+) in blood
  • Transferrin = carrier
  • Total iron binding capacity (TIBC) = available space on transferrin
  • Serum Ferritin = form of iron stored in cells, raised in inflammation

Normal ranges
Serum Ferritin: 41 - 400 ug/L

Serum Iron (variable throughout the day): 12 - 30 μmol/L

TIBC: 54 – 45 - 80 μmol/L

Transferrin sat: 15 - 50%

Transferrin sat (%) = serum iron/TIBC

Transferrin & TIBC = increase in IDA

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18
Q

Investigations for anaemia

A

Depends on suspected cause

  • FBC for Hb and MCV
  • Reticulocyte count (indicates red blood cell production)
  • Blood film
  • Renal profile for CKD
  • LFT for liver disease and bilirubin (raised in haemolysis)
  • Ferritin (iron)
  • B12 and folate
  • Intrinsic factor antibodies for pernicious anaemia
  • TFT for hypothyroidism
  • Coeliac disease serology (anti-TTG)
  • Myeloma screening (e.g., serum protein electrophoresis)
  • Haemoglobin electrophoresis for thalassaemia and sickle cell disease
  • Direct Coombs test for autoimmune haemolytic anaemia

Unexplained anaemia = bone marrow biopsy for leukaemia or myeloma

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19
Q

Management for iron deficiency anaemia

A

Unexplained IDA = colonscopy and oesophagogastroduodenoscopy (OGD) for malignancy

Tx:
- Oral iron (e.g., ferrous sulphate or ferrous fumarate)
- Iron infusion (e.g., IV CosmoFer)
- Blood transfusion (in severe anaemia)

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20
Q

Management of iron-deficiency anaemia in children

A
  • Tx underlying cause e.g. dietician for dietary deficiency
  • Supplements: ferrous sulphate or fumarate (not suitable for malabsorption IDA)
  • Rarely, blood transfusiion
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21
Q

Haemorrhoids

A
  • Enlarged anal vascular cushions
  • Associated with constipation and straining, pregnancy, obesity and increased intra-abdo pressure (e.g. weightlifting)

Anal cushion are specialised submucosal tissues that help control anal continence alongside internal and external anal sphincters.

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22
Q

Classification of haemorrhoids

A
  • 1st degree: no prolapse
  • 2nd degree: prolapse when straining and return on relaxing
  • 3rd degree: prolapse when straining, do not return on relaxing, but can be pushed back
  • 4th degree: prolapsed permanently
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23
Q

Clinical features of haemorrhoids

A
  • Asymptomatic
  • Painless, bright red bleeding, not mixed with stool (think ddx)
  • Sore, itchy anus
  • Lump around/inside anus
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24
Q

Examinations for haemorrhoids

A
  • External (prolapsed) haemorrhoids - swellings covered in mucosa
  • Internal - PR exam but difficult or not possible usually
  • Prolapse might be visible if pt asked to “bear down”
  • Proctoscopy needed to confirm dx
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25
Differentials for rectal bleeding
- Anal fissures - Haemorroids - Diverticulosis - Inflammatory bowel disease - Colorectal cancer
26
Management of haemorrhoids
Topical - Anusol/Anusol HC (+hydrocortisone)+ - Germoloid (contains lidocaine) - Proctosedyl ointment (cinchocine + HC)+ Non-surgical tx: - Rubber band ligation - Injection sclerotherapy (phenol oil to cause sclerosis and atropy) - Infrared coagulation - Bipolar diathermy (electrical current) | + Short-term use only
27
Surgical tx for haemorrhoids
- Haemorrhoidal artery ligation - cutting off blood supply to haemorroid - Haemorrhoidectomy - excision Thrombosed haemorrhoids - caused by strangulation at base, resolve within a few weeks or admission + surgery if presents <72hrs with extreme pain.
28
Tx for psoriasis
Main one in GP Dovobet gel
29
Eczema (atopic dermatitis)
Inflammatory skin condition characterised by dry, pruritic skin Chronic and replasing Usually dx < 5yo Acute = flare-up Chronic = chronic inflammation e.g. lichenification
30
Presentation of eczema
Usually in childhood - Sore, itchy skin in flexor surfaces, face, neck - Caused by defects in skin barrier that allow irritants, microbes and allergens to trigger immune response - Part of atopy (asthma, hayfever)
31
Management of ezcema
- Maintenance and management of flares Maintenance: artifical skin barrier - Emollients to apply and in shower Avoid triggers: e.g. cold weather, washing powders, cleaning products, stress Flares: thicker emollients, topical steroids, "wet wraps"1 Very severe flare require: IV abx, oral steroids, zinc impregnanted bandages, phototherapy, systemic immunosuppressant e.g. methothrexate | 1 applying thick emollient and coering in wrap to lock moisture
32
Emollients available for eczema
Use as thick as tolerated Thin: E45, diprobase cream, cetraben, oilatum Thick,greasy: 50:50 ointment (50% liquid paraffin), diprobase or centraben ointment
33
Topical steroid ladder
Better to use stronger steroids for shortest time than weak steroids for a long time Thin skin e.g. eyelids/face = weak Thick skin e.g. palms = potent - Mild: Hydrocortisone 0.5%, 1% and 2.5% - Moderate: Eumovate (clobetasone butyrate 0.05%) - Potent: Betnovate (betamethasone 0.1%) - Very potent: Dermovate (clobetasol propionate 0.05%)
34
Infections of the skin in eczema
- Staphylococcus aureus = admission and IV abx - Eczema herpeticum1 = HSV/VZV. Viral swabs and aciclovir ## Footnote 1 Patients are very unwell with widespread, painful, vesicular rash and fever/lethargy.
35
Atrophic Vaginitis
- Dryness, atrophy and loss of elasticity of vaginal mucosa due to lack of oestrogen - More prone to inflammation - Change in vaginal pH and microbial flora = infection - Oestrogen = thicker vaginal and urinary tract epithelial lining, more secretions, elastic
36
Presentation of atrophic vaginitis
Postmenopausal women: - Itching - Dryness - Dyspareunia - Bleeding (inflammation) - Recurrent UTIs - Stress incontinence - Pelvic organ prolapse
37
Signs on examination in atrophic vaginitis
Examine the labia and vagina - Pale mucosa - Thin skin - Reduced skin folds - Erythema and inflammation - Dryness - Thinning pubic hair
38
Management of atrophic vaginitis
Vaginal lubricants e.g. Sylk, YES Topical oestrogen = significant symptom improvements! - Estriol cream (applicator at night), pessaries (inserted at night), tablets, rings (3 monthly replacement) - CI in breast cancer, angina, VTE, monitor at least annually, stop tx if possible
39
Bell's palsy
Acute, sudden-onset, unilateral facial palsy, single episode, no constitutional symptoms, keratoconjunctibitis sicca (dry eye) Cause: maybe HSV-1 Clinical dx of exclusion Tx is high-dose corticosteroid e.g. prednisolone, eye protection (glasses, artifical tears) Exclude Lyme's disease-associated facial paralysis before tx as worsen outcome
40
Eyelid disorders: blepharitis
- Inflammation of eyelid margins - Gritty, itchy and dry sensation - Associated with dysfunction of Meibomian glands (secrets meibum (oil) onto eye surface) - Can lead to styes and chalazions - Mx = warm compress and gentle cleaning
41
Eyelid disorder: stye
Hordeolum externum: infection of gland of Zeis and Moll, sebaceous and sweat glands at base of eyelashes Hordeolum internum: infection of the Meibomian glands, deeper, more painful Mx: hot compresses, analgesia, topical abx (e.g. chloramphenicol) if conjuctivitis or persistent
42
Eyelid disorder: chalazion (Meibomian cyst)
Meibomian gland becomes blocked and swells. Swelling in eyelid, can be tender and red but usually not! Mx: warm compresses, massage towards eyelashes to help drainage, surgical drainage might be needed
43
Eyelid disorders: entropion
When eyelids turn inwards and lashes press against the eye Pain, coneal damage and ulceration Mx: tape eyelid to prevent inward turn, then refer to ophhalmology for surgery, same-day if risk to sight
44
Eyelid disorder: ectropion
Eyelid turns outwards, exposing inner membrane Usually bottom eyelids = exposure keratopathy as eyeball not lubricated and protected Mx: mild cases = lubricating eye drops, severe cases = surgery, same-day referral to opthalmology if risk to sight
45
Eyelid disorders: trichiasis
Inward growth of eyelashes, pain, corneal damage and ulceration Mx: remove affected eyelashes, if recurrent then electrolysis, cryotherapy or laser tx to stop regrowth. Same-day ophthalmology referral if risk to sight
46
Eyelid disorders: periorbital cellulitis
Infection of the eyelid and skin in front of the orbital septum (in front of the eye) Swollen, red, hot skin around eyelid and eye Tx with systemic (oral or IV) abx, can develop into orbital cellulitis so children etc. need admission and monitoring Key ddx is orbital cellulitis = sight and life-threatening emergency
47
Eyelid disorders: orbital cellulitis
Infection around eyelid of the tissue behind orbital septum Pain on eye movement, reduced eye movement, vision changes, proptosis, abnormal pupil reactions Emergency admission to opthalmology and IV abx per local policy, surgical drainage if abscess
48
Benign paroxymal positional vertigo (BPPV)
- Causes recurrent episodes of vertigo triggered by head movement - Variety of head movements trigger vertigo, e.g. turning over in bed, lasts 20 to 60s - Episodes over several weeks, then resolves, then reoccurs weeks or months later - Peripheral cause of veritgo = inner ear cause, not the brain - Does not cause hearing loss or tinnitus
49
Pathophysiology of BPPV
Calcium carbonate crystals called otoconia that become displaced in the semicircular canals. Causes: viral infection, head trauma, aging Distruption of the endolymph flow through canals, confusing the vestibular system. Head movement = endolymph flow = vertigo
50
Diagnosis of BPPV
Dix-Hallpike Manoeuvre Dix for Dx Triggers endolymph flow through semicicular canals Positive signs = rotational nystagmus towards affected ear and vertigo
51
BPPV treatment
Epley Manoeuvre to move crystals in semicircular canal to a position that does not disrupt endolymph flow.
52
Benign Prostatic Hyperplasia (BPH)
- Common in men > 50 - Hyperplasia of stromal and epithelial cells of the prostate
53
Presentation of BPH
Lower urinary tract symptoms (LUTS), typically: FUNI: frequency, urgency, nocturia, intermittency (flow starts/stops) SHID: (poor) stream, hesitancy, incomplete empyting, dribbling (terminal) ## Footnote International prostate symptom score (IPSS) - socre to assess LUTS severity
54
Assessment in BPH
- Digital rectal exam (prostate exam) - Abdo exam for bladder - Urinary frequenct volume chart - Urine dipstick - PSA (unreliable)
55
Benign vs cancerous prostate on examination
Benign prostate: smooth, symmetrical and soft, central sulcus Cancerous:firm/hard, asymmetrical, craggy, irregular, loss of central sulcus
56
Management of BPH
- Mild = conservative Medical: - Alpha-blockers1 (e.g. tamsulosin) relax smooth muscle for symptoms - 5-alpha reductase inhibtor2 (finasteride) for tx of BPH Surgery: - MC is transurethral resection of the prostate (TURP) - remove parts of prostate from inside of urethra ## Footnote 1 Key SE: postural hypotension, consider tamsulosin as cause of dizziness on standing/falls in older man 2 Key SE is erectile dysfunction
57
Peripheral arterial (vascular) disease (PAD)
Narrowing of arteries supplying limbs and peripheries Most common in lower limbs > intermittent claudication (ischaemia in a limb during exertion, better on rest) Chronic limb-threatening ischaemia - end-stage of PAD, inadquate blood supply to limb even at rest.
58
Presentation of PAD
Intermittent claudication - crampy achy pain in calf, thigh or buttock muscles when walking beyond a certain distance Chronic limb threatening ischaemia - burning pain at rest, worse at night, non-healing ulcers and gangrene
59
59
PAD: signs on examination
Generally, peripheral arterial disease: - Skin pallor - Cyanosis - Depedent rubor (deep red when limb is lower than body) - Muscle wasting - Hair loss - Ulcer - Poor woundhealing - Reduced skin temp - Reduced sensation - CRT > 2s - Positive Buerger's test
60
Atherosclerosis is the underlying cause of PAD, what are the risk factors of atherosclerosis?
Non-modifiable risk factors: older age, FHx, male Modifiable risk factors: - Smoking - Alcohol consumption - Poor diet (high in sugar and trans-fat and low in fruit, vegetables and omega 3s) - Low exercise / sedentary lifestyle - Obesity - Poor sleep - Stress Medical co-morbidities that increase the risk: - Diabetes - HTN - CKD - Inflammatory conditions e.g. RA - Atypical antipsychotics ## Footnote Tom tip: make sure to think and ask about RFs when taking a hx from someone with atherosclerotic disease: exercise, diet, PMH, FHx, occupation, smoking, alcohol, meds
61
Acute limb ischaemia
Occurs when a thrombus blocks the arterial supply of a distal limb. 6Ps - Pain - Pallor - Pulseless - Paralysis - Paraesthesia (abnormal sensation or “pins and needles”) - Perishing cold
62
Leriche syndrome
Occlusion in distal aorta or proximal common iliac artery - Thigh/buttock claudication - Absent femoral pulses - Male impotence
63
PAD: Buerger's Test
Assesses for PAD in legs Part one: patient lies supine, straight leg lift 45 degrees for 1 - 2 mins, PAD = pallor Part two: patient sits up with legs dangling, in PAD: - Blue initially as ischaemic tissue deoxygenates blood - Dark red (rubor) after due to vasodilation from waste products from anaerobic respiration
64
Investigations for PAD
- Ankle-brachial pressure index: compares ankle systolic BP to arm systolic BP. - Duplex USS - speed and volume of blood flow - Angiography (CT+MRI) -
65
Management of intermittent claudication
- Lifestyle changes for modifiable RFs, optimise co-morbidities e.g. HTN and diabetes - Excercise training - walking to near-maxial claudication then rest and repeat - Medical: Atorvastatin 80mg, clopidogrel 75mg daily, naftidrofuryl oxalate (peripheral vasodilator) - Surgery: eg. endovascular angioplasty and stenting
66
Mx of critical limb ischaemia
- Urgent vascular team referral - Analgesia - Endovascular angioplasty and stenting - Endarerectomy (cut vessel open, remove atheromatous plaque) - Amputation if unable to restore blood supply
67
Mx of acute limb ischaemia
- Urgent vascular team referral for assessment - Endovascular thrombolysis/thrombectomy - Surgerical thrombrctomy - Then same as mx of critical limb ischaemia
68
Bursitis
Inflammation of a bursa, which are sacs created by synovial membrane filled with small amount of synovial fluid Found at bony prominences e.g. greater tronchanter or elbow to reduce fricton during movemtn
69
Causes of bursitis
- Friction from repetitive movements or leaning on the elbow - Trauma - Inflammatory conditions (e.g., rheumatoid arthritis or gout) - Infection – referred to as septic bursitis
70
Olecranon bursitis
Bursitis of the bursa over the elbow, olecranon is a bony lump at elbow, part of the ulna bone Typically, a student studying and leaning on elbow for a long time Elbow is swollenm warm, tender and fluctuant (fluid-filled) Signs of infection: hot to touch, more tender, erythema, fever, sepsis (tachy, hypotension, confusion) Septic arthritis: joint swelling, pain and reduced ROM
71
Investigation for bursitis
Aspiration of bursa if infection suspected - Pus = infection - Straw-colour = infection less likely - Blood-stained = trauma/infection.inflammatory - Milky = gout/pseudogout Sent for microscopy and culture
72
Management for olecranon burstitis
Supportive: rest, ice, compression, analgesia (e.g., paracetamol or NSAIDs), protect elbow, - Aspiration to relieve pressure - Steroid injections Infection: - Diagnostic aspiration - Antibiotics (flucloxacillin 1st line) - If systemically unwell = hospital for bloods (including lactate), blood cultures, IV abx, IV fluids
73
Trochanteric buritis
Inflammation of a bursa over the greater trochanter on the outer hip Presentation: - Middle aged patient with gradual-onset lateral hip pain (over greater trochanter) = greater trochanteric pain syndrome - Buring/aching - Radiation to outer thigh - Worse with activity, standing after sitting for long time - Disrupts sleep
74
Examination findings in trochanteric bursitis
- Trendelenburg test - Resisted abduction of the hip - Resisted internal rotation of the hip - Resisted external rotation of the hip Pain on resisted movement = postiive
75
Management of trochanteric bursitis
Dx by history and examination Supportive: rest, ice, analgesia (ibuprofen/naproxen), physio Steroid injection if ineffective If caused by infection (warmth, erythema, swelling and pain over bursa) then abx Can take 6 - 9m to recover, sometimes longer
76
Chronic fatigue syndrome
At least 3 months of disabling fatigue affecting mental and physical function > 50% Cannot be explained by other diseases More females, PMH of psychiatric conditions not a RF Fatigue is key feature, sleep problems (too much/little), muscle/joint pain, headaches, painful lymph nodes, cognitive dysfunction e.g. brain fog, worse after physical/mental exertion, general malaise
77
Investigations and diagnosis of chronic fatigue syndrome
NICE recommends: - Bloods to rule out other causes e.g. FBC, U+E, LFT, glucose, TFT, ESR, CPR, calcium, CK, ferritin, coeliac screen, urinalysis NICE diagnostic criteria (all symptoms at least 3m) - Debilitating fatigue worsened by activity - Post-exertional malaise - Unrefreshing sleep - Cognitive difficulties (brain fog)
78
Management of chronic fatigue syndrome
- Refer to specialist CFS service Supervised by CFS specalist team: - Self-mx of activity to stay within energy limit - Phscial activity and exercise - CBT (supportive not curative)
79
Conjunctivitis
- Inflammation of conjunctiva (thin layer of tissue covering inside of eyelids and sclera) - Bacterial, viral, allergic - Red boodshot eye - Itchy/gritty feel - Discharge DOES NOT cause pain, photophobia or reduced visual acuity
80
Viral vs bacterial conjunctivitis
81
Causes of acute (painful) red eye
- Acute angle-closure glaucoma - Anterior uveitis - Scleritis - Corneal abrasions or ulceration - Keratitis - Foreign body - Traumatic or chemical injury | If pain or reduced visual acuity = same day ophthalomology referral
82
Management of viral and bacterial conjunctivitis
- Self-resolve in 1-2 weeks - Hygiene measure e.g. no towel sharing, handwashing - Clean eye with cooled, boiled water - Chloramphenicol/fusidic acid eye drops for bacterial conjunctivtis - Neonates < 1m = urgent ophthalmology assessment, possible gonococcal infection, permanent vision loss if untx
83
Management for allergic conjunctivitis
Contact with allergens, swelling of conjunctival sac and eye with itching and watery discharge Tx: antihistamines (oral or topical) or topical mast-cell stabilisers for chronic seasonal symptoms
84
Constipation
Defecation that is unsatisfactory because of infrequent stools (< 3 times weekly) and difficulty passing stools with straining or discomfort Ix: exclude secondary causes and red flags, exclude faecal impaction Mx: increase dietary fibre, adequate fluids and activity levels Meds: - 1st line is bulk-forming laxative e.g. ispaghula - 2nd line: osmotic laxative e.g. macrogol
85
Contact dermtitis
Skin reaction in contact with causative agent. Nearly always itchy - Irritant contact dermatitis - eczema in affected area with buring/pain, higher risk if pre-existing skin condition - Allergic contact dermatitis:1 itchy eczematous rash (vesciles, fissures, erythema), caused by nickel (jewellery), perfumes, latax, hair dye and henna | 1 Type IV hypersensitivity reaction, sensitised over time
86
Mx of contact dermatitis
- Avoidance of causative agent - Generous emollient and soap substitutes - Oral antihistamines - Topical steroids - Refer to dermatalogy if severe, chronic, persistant or tx ineffective
87
Gout
Crystal arthropathy due to chronically high blood uric acid levels Urate crystals in joints > inflammation, acute, hot, swollen, pain usually in single joint - metatarsophalangeal joint (big toe base), carpometacarpal joint (base of thumb), wrist Gouty tophi = SC uric acid desposits ## Footnote Key differential: septic arthritis
88
Risk factors for gout
- Male - Family history - Obesity - High purine diet (e.g., meat and seafood) - Alcohol - Diuretics - Cardiovascular disease - Kidney disease
89
Diagnosis of gout
Clinical diagnosis with raised serum urate levels Joint aspirate: Gout: monosodium urate cystals, needle-shaped negatively birefringent **P**seudogout: calcium pyrophosphate cystals, rhomboid-shaped and **p**ositively birefringent ## Footnote If any signs of septic arthritis, emergency mx with joint aspiration and abx
90
Management of gout
1st line: NSAID (e.g. naproxen) + PPI - 2nd line Cochicine (if renal impairment) - 3rd line: prednisolone - Prophylaxis with allopurinol or febuxostat (xabthine oxidase inhibitors - lowers uric acid levels) - started weeks after acute episode, then continued through acute episodes after (COMMON EXAM Q)
91
Pseudogout
Crystal arthropathy, calcium pyrophosphate crystals in joints Typcially >65 with rapid-onset, hot, swollen, stiff and painful knee/shoulers/hips/wrists | Key ddx = septic arthritis, much more severe sx
92
Diagnosis of pseudogout
Symptoms tend to be milder than gout and septic arthritis DIagnostic = joint aspiration, calcium pyrophsphate crystals - rhomboid-shaped, +ve birefringent of polarised light X-ray finding: chrondrocalcinosis (calcium deposits as thin white line in joint space
93
Management of pseudogout
Symptom mangement, if asymptomatic changes on x-ray = no tx Usually self-resolves in several weeks - NSAIDs e.g. naproxen is 1st line + PPI - Colchicine - Intra-articular steroid injections (exclude septic arthritis) - Oral steroids
94
Ringworm/tinea/dermatophytosis
Fungal infection of the skin - Tinea capitis - scalp - Tinea pedis - feet - Tinea cruris - groin - Tinea corporis - body - Onchomycosis - nail Itchy, erythematous, scaly, well demacrated rash Most commonly caused by trichophyton fungus
95
Management of ringworm/tinea/dermatophytosis
Clinical dx, can send scales off for microscopy and culture Anti-fungal medications: - Clotrimazole and miconazole cream - Tinea capitis: ketoconazole shampoo - Oral anti-fungals: fluconazole - Fungal nail infections = 6 - 12m amorolfine nail lacquer, oral terbinafine if ineffective, LFTs before and during tx - Mild steroid for inflammation + itching e.g. miconazole 2% and hydrocortisone 1% cream (Daktacort), steroids > tinea Incogito