EMQs Flashcards
Blood transfusion - several hours later develops rash all over
Allergic reaction
Road traffic accident requiring 6 unit transfusion - Becomes acutely breathless/SOB with a fever and tachycardia
Transfusion Related Lung Injury
Tachycardia
Hypotension
Fever
SOB or low sats or bilateral lung infiltrates
Regular transfusions for beta-thalassaemia - presents with malaise and erectile dysfunction
Transfusion associated haemosiderosis
Alcoholic has an AAA repair and several days later develops a fever with low Hb and jaundice
Delayed haemolytic transfusion reaction
10 mins after transfusion becomes tachycardic, has transfusion site pain and is hypotensive
ABO incompatibility
Sickle cell solubility test comes back positive with some clouding of the tested blood
Sickle cell trait
African child, low Hb and normal MCV.
Blood is tested by electrophoresis to confirm diagnosis:
v high HBS and low HbF
Sickle cell anaemia
Haemolysis after antimilarials / malaria treatment
G6PD - Glucose-6-phosphate-dehydrogenase deficiency
Spherocytes, polychromasia and reticulocytosis on blood film
Hereditary spherocytosis
Tested with osmotic fragility test
Coeliac disease with uncontrolled diet (ie eats gluten) –> macrocytosis
why?
folate deficiency
Teenager goes cross country running and gets an erythematous rash with is well controlled by antihistamines
Cold urticaria
Man can eat apple pie but if he eats fresh apples and pears he gets inflamed lips
Oral allergy syndrome
Allergic reaction during surgery - also gets swollen lips when blowing up balloons
Type 1 hypersensitivity latex allergy
Bloated after drinking milk but not IgE mediated
Lactose intolerance
A girl with a sore throat is given penicillin and develops a rash. She is found to have EBV
Drug reaction
High IgG paraprotein, back pain and loss of sensation in legs
Multiple Myeloma
IgM paraprotein and visual disturbances
Lymphoplastic lymphoma (Waldenstrom’s macroglobinaemia)
Asymptomatic, low neutrophils, no abnormal cells on film
Chronic idiopathic neutropenia
Pancytopenia and immature myeloid cells on blood film with normal WCC
Acute Myeloid Leukaemia
An overweight individual with diabetes has longstanding bone/back pain. They are found to have paraprotein IgA ~8g/dl, and GFR 55
FBC normal and albumin normal.
Monoclonal-gammopathy of unknown significance
Asymptomatic with isolated rise in unconjugated bilirubin
Gilberts
22 yo student with two weeks of fever, anorexia and malaise
Raised ALT>raised ALP+GGT
Viral hepatits
Woman with colicky abdo pain
Raised GGT+Billirubin>other raised markers
post-hepatic disease eg Acute Cholestasis
57 yo man with haematemesis
High ALT+GGT>raised ALP
low albumin
Alcohol induced hepatitis
Headaches with an isolated raised ALP
Paget’s
Most common cause of traveller’s diarrhoea
Escherichia Coli
Foul smelling diarrhoea and cramping pain 5 days after eating chicken at a BBQ
Campylobacter
OR Shigella if bloody diarrhoea
food poisoning after rice
Bacillus Cereus
Had surgery which required antibiotics, now has profuse watery diarrhoea
Clostridium Difficile
Nurse gets diarrhoea after patients have had similar illness on her ward
Norovirus
Antibiotic for Listeria Meningitis
Amoxicillin and Gentamycin
OR
Ampicillin and Gentamycin
Treatment for non-Listeria Meningitis
< 3 months - IV cefotaxime and amoxicillin or ampicillin
> 3 months - IV ceftriaxone
Antibiotic for mild community acquired pneumonia
Amoxicillin
Treatment for Group A Strep / Strep throat
Oral Penicillin V
OR
IV Benzylpenicillin and Metronidazole
Cystitis - fully sensitive E. Coli
Trimethoprim
Cannot be used in pregnancy
MRSA cellulitis treatment
Vancomycin
Methicillin sensitive Staph aureus cellulitis treatment
Flucloxacillin
Bicarbonate value in pyloric stenosis
HIgh -> metabolic alkalosis
Potassium in DKA
HIgh then low following insulin treatment
Oral Glucose Tolerance Test
Results seen in Impaired Glucose Tolerance
7.7 < IGT > 11.1
Below 7.7 = normal
above 11.1 = suggestive of diabetes
Fasting glucose results interpretation
<6.1 = normal 6.1-7.0 = Impaired Fasting Glucose >7.0 = suggestive of diabetes
Oral Glucose tolerance test
before: 4.9
after: 10.0
Impaired glucose tolerance
7.7-11.1
Teenager presents with several weeks of thirst, increased urination and weight loss
T1DM
High Na
Low K
High Urine osmolality
Conn’s syndrome
Metabolic acidosis with high K
DKA
High sodium
High Potassium
Plasma osmolality ~ 400
Urine osmolality ~ 600
SIADH
OR psychogenic polydipsia if history of excessive drinking with no physiological stimuli
Cells which immature form is in the periphery and then when it matures presents antigens to T cells
Dendritic cells
Cell inhibited by the presence of MHC1 on cells
Natural Killer cells
Increased in parasitic infection
Eosinophils
Undergoes positive and negative selection in the thymus
T lymphocytes
Cell responsible for the production of pus
neutrophils
Cancer associated with Barrett’s Oesophagus
Adenocarcinoma
Cell changes in the oesophagus due to GORD
Metaplasia
Stomach changes in pernicious anaemia
Atrophic gastritis
Cancer associated with H. Pylori
MALT lymphomas due to chronic gastritis. t(11:18)
Mucosa Related Lymphoid Tissue
Cancer associated with coeliac disease
Lymphoma
Most common type of malignancy in the breast
Invasive ductal carcinoma (75%)
Which breast cancer is also known as non-specific type
Invasive ductal carcinoma
Breast cancer which has a high, medium and low stage
Ductal carcinoma in situ
Fibro-epithelial tumour with abundant stromal elements
Phyllodes tumour
E-cadherin test results
Positive = invasive ductal carcinoma
Negative = Invasive lobular carcinoma
If this enzyme is low, leads to hyperiricemia/rise in blood uric acid
HGPRT (Hypoxanthine-guanine phosphoribosyltransferase)
Associated with Lesch–Nyhan syndrome
Enzyme which regulates the rate-limiting step in haem biosynthesis
ALA Synthase (d-Aminolevulinate Synthase)
Raised in osteomalacia
ALP (alkaline phosphatase)
Enzyme raised in mumps
Amylase-S
Amalyse-P is raised in pancreatitis
Raised biomarker in Rhabdomyolysis
Creatinine kinase
Aches all over, diffuse swelling and joint stiffness.
Rheumatoid arthritis
Anti-CCP
Anti-cyclic citrullinated peptide
Dry eyes and parotid swelling
Sjogren’s syndrome
anti-Ro and anti-La
Man with weakness in gym and ptosis
Myesthenia Gravis
Anti-acetylcholine receptor
what would you measure in exacerbation of SLE
C3 and C4
low in active disease
Recurrent infections (chest and ear). No B cells
Bruton’s X-linked agammaglobinaemia
Abscesses and positive NBT
Myeloperoxidase deficiency
Negative NBT = Chronic granulomatous disease
Lack of CD4 cells with CD8 and B cells present
Bare lymphocyte syndrome
A boy’s father has TB. The boy develops a mycobacterium infection following the BCG
IFN-gamma receptor deficiency
UTI and acute onset costovertebral pain. Pus cells and blood in urine.
Acute pylonephritis
Loin-to-groin pain, haematuria and pain at end of micturation
Renal calculus causing UTI
Frank painless haematuria and a palpable mass on one side in adult
Renal cell carcinoma
Palpable abdominal mass in a 2 yo
Wilm’s tumour
A man with AF develops fever, nausea, vomiting and pain in his right loin/flank
Renal infarct
Most common cause of maternal throbocytopenia
Gestational thrombocytopenia (70%)
other causes:
Pre-eclampsia (21%)
Maternal idiopathic thrombocytopenia purpura (3%)
Cause of DIC in pregnancy
Placental abruption or Amniotic fluid embolism
HELLP syndrome signs
Haemolysis (MAHA)
Elevated Liver enzymes
Low Platelets
Normally increased in pregnancy
Fibrinogen
Creatinine clearance
ALP
Cause of neonatal thrombocytopenia
<72 hours = placental insufficiency (reduced platelet production)
> 72 hours = sepsis or necrotising enterocolitis
Treatment for herpes simplex virus 1 encephalitis
Acyclovir
Treatment of herpes zoster in pregnancy
Acyclovir
Antibiotic used to treat Respiratory syncytial virus (bronchiolitis) in a child
Ribavirin
Treatment for influenza A
Oseltamivir (can be used in asthmatics) or Zanamivir (cannot be used in asthmatics)
Abdo pain radiating to back, collapses and dies
AAA
Progressive memory issues and hypertension
multiple cerebral infarcts (vascular dementia)
Elderly man with AF develops right flank pain
Renal infarct
Man with previous MI now has blood in the pericardium
Ventricular rupture
Girl is acting strangely.
LP shows high lymphocytes and raised protein but normal glucose
Viral eg Herpes
18 yo with gram negative diplococci causing meningitis
Neisseria meningitidis
Smoker with gram positive diplococci causing meningitis
Strep pneumonia
Gram negative rod causing sepsis in a neonate
<3 months = E. coli
> 3 months = Haemophilus influenenzae
Gram positive rod causing meningitis in a 72 yo
Listeria monocytogenes