GP and primary healthcare Flashcards
(96 cards)
Acne vulgaris
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)
Clinical features of acne vulgaris
- 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
Conservative management of acne vulgaris
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
Medical management for mild to moderate acne
1st line: 12 week course of any 2 of the following in combination:
- Topical benzoyl
- Topical antibiotics (clindamycin)
- Topical retinoids (tretinoin adapalene)
Medical management for moderate to severe acne
- 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
Acute stress reaction
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
Clinical features of Acute Stress Reaction
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
Mangement of Acute Stress Reaction
1st line: trauma focused CBT, medications e.g. benozodiazepines for symptomatic relief
Consider differentials such as PTSD and adjustment disorder
Iron deficiency anaemia
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
Anaemia: Hb and Mean Cell Volume (MCV)
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
-
Causes of anaemia
- Microcytic anaemia (low MCV)
- Normocytic anaemia (normal MCV)
- Macrocytic anaemia (large MCV)
Mmemonic for microcytotic anaemia
TAILS
T – Thalassaemia
A – Anaemia of chronic disease
I – Iron deficiency anaemia
L – Lead poisoning
S – Sideroblastic anaemia
Causes of normocytic anaemia
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
Causes of macrocytic anaemia
- 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)
Clinical features of anaemia
- Tiredness
- SOB
- Headache
- Dizziness
- Palpitations
- Worsening of angina, HF, PAD
- IDA: pica, hair loss
Anaemia: signs on examination
- Pale skin
- Conjunctival pallor
- Tachycardia
- Increased RR
- IDA: koilonychia, angular cheilitis, atrophic glossitis (smooth tongue), brittle hair + nails
- Haemolytic anaemia: jaundice
Terms in iron-deficiency anaemia blood tests
- 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
Investigations for anaemia
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
Management for iron deficiency anaemia
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)
Management of iron-deficiency anaemia in children
- Tx underlying cause e.g. dietician for dietary deficiency
- Supplements: ferrous sulphate or fumarate (not suitable for malabsorption IDA)
- Rarely, blood transfusiion
Haemorrhoids
- 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.
Classification of haemorrhoids
- 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
Clinical features of haemorrhoids
- Asymptomatic
- Painless, bright red bleeding, not mixed with stool (think ddx)
- Sore, itchy anus
- Lump around/inside anus
Examinations for haemorrhoids
- 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