Path PPQs Flashcards
flucloxacillin resistance in S. aureus
c. Alteration of the target
mechanism is ESBL E.coli resistant to ceftriaxone
b. Enzymatic inactivation of antibiotic
patient has grown a fully susceptible E.coli in their urine. Which of the following is the narrowest spectrum agent you should de-escalate to
a. Amoxicillin
Most common HAI
HA pneumonia
c.diff
Gram pos spore-forming anaerobe
What are fungi
a. Eukaryotic organisms with chitinous cell walls and ergosterol containing plasma membranes
commonest cause of fungal infections in humans
c. Candida spp
cryptococcus associated with which animal
pigeons
stain used for cryptococcus
india
antigungals targeting cell membrane not work in PCP why?
PCP lacks ergosterol in cell wall
Live vaccine should be deferred if?
a. Patient has received immunoglobulin in past 3 months If given antibodies already, they may not produce an immune response, so there is no point
b. Patient is receiving systemic high dose steroids They would be immunosuppressed
Percentage of world’s popultion infected w TB
33%
acid-fast bacilli found in clinical sample - what to do next?
start TB therapy
lifetime risk of reveloping TB if in contact with smear positive pul TB if HIV neg
10%
yearly risk of reveloping TB if in contact with smear positive pul TB if HIV pos
10 per year
Most common meningeal disease in UK
men B
Most common cause of death worldwide under 5 yrs
prematurity and pneumonia
What on microsopy suggests poor sample
squamous epithelial cells
dipstick paramemter that is a produuct of nitrate reductase and suggestive of UTI
nitrate
What type of immunouppression has greatest relative risk of developing viral infection:
a. Steroids
b. Solid organ transplant
c. Allogeneic stem cell transplant
d. Monoclonal antibody therapies
e. Cytotoxic chemotherapy
Allogenic stem cell transplant
Mouth ulcers post HSCT
Herpes simplex virus (HSV) - very common after transplant
How long do u need to have Sx for gastroenteritis definition
> 1wk of symptoms
Extraintestinal manifestation associated with salmonella infection
Aortitis
Virus associted wtih outbreaks
Norovirus
What si the thoracic duct
c. Carries lymphocytes from lymph nodes back to blood circulation
thymus?
d. Site of deletion of T cells with inappropriately high or low affinity for HLA molecules and of maturation of T cells into CD4+ or CD8+ cells
germinal centre?
a. Area within secondary lymphoid tissue where B cells proliferate and undergo affinity maturation and isotope switching
Which of the following medications can cause antibody deficiency?
a. Metformin
b. Losartan
c. Prednisolone
d. Alendronic acid
e. Rituximab
RITUXIMAB
a. Metformin
b. Losartan
c. Prednisolone -> Could be, but antibody deficiency usually seen at higher dose (>10mg). Also usually only causes a selective antibody deficiency (IgG). It usually spares IgM and IgA.
d. Alendronic acid
e. Rituximab -> Targets B cells
7) Which of the following conditions are most likely to present in patients with CD4 T cell counts of >350?
a. Shingles, pulmonary TB, pneumococcal pneumonia
b. Hairy leukoplakia
c. PCP, Cryptococcus, toxoplasmosis
d. MAC disease
a. Shingles, pulmonary TB, pneumococcal pneumonia
Infection wiht atypical mycobacterium. normal FBC - diagnosis?
IFN gamma R deficiency
Meningococcus meningitis with sibling dying of same condition at same age?
C7 deficiency
17) Severe recurrent infections from 3 months,CD4 and CD8 T cells absent, B cell present, Igs low. Normal facial features and cardiac echocardiogram. What is the diagnosis?
X-linked SCID
22) Recurrent bacterial infections in a child, episode of pneumocystis pneumonia, high IgM, absent IgA and IgG. What is the diagnosis?
X-linked hyper-IgM
CD40 ligand mutation
HyperIgM syndrome
what proportion of the world has kidney disease
11%
5 year survival % for end stage kidney failure on dialysis
35%
28) A potential donor is described as being 1:1:0 MM. What does this mean?
c. 1 MM A locus, 1 MM B locus, 0 MM DR locus
29) The main effector cells in T-cell mediated rejection are
b. T cells and monocytes / macrophages
30) A patient has an episode of acute T cell-mediated rejection 2 months post transplantation. What additional drug would most commonly be administered?
Corticosteroids 3 pulses of methyl-prednisolone given 3 days in a row, followed by an oral steroid taper
What cell is njuryed in the effector phase of antibody-mmediated rejection
endothelial cells
If there is 50% match of HLA from donor and recipient, what does that mean?
Parent and son/
39) Which of the following is an example of Gel and Coombs type III hypersensitivity
a. Goodpasture disease
b. Eczema
c. SLE
d. Multiple sclerosis
e. Graves disease
SLE
45) Which of the following vaccines should NOT be given to an immunosuppressed individual?
a. BCG - bacilli Calmette-Guerin
b. Diphtheria toxoid
c. Quadrivalent inactivated influenza vaccine
d. Polio (Salk – injected)
e. Pfizer Covid mRNA vaccine
a. BCG - bacilli Calmette-Guerin
46) A 23 year old has metastatic melanoma. Reduce disease progression with what?
Nivolocumab - anti-PD-1
48) Rituximab is a monoclonal antibody specific for CD20 on B cells. It depletes B cells. For what is it effective treatment
e. Rheumatoid arthritis
Treatment fo psoriasis / psoriatic arthritis
Ustekinumab - IL-12 / IL-23 inhibition / TNF-alpha blocker
Increase or decreased protein C increases thrombosis risk?
Decreased protein C
- Which agent has a delayed anticoagulant effect?
a) Vitamin K
b) Unfractionated heparin
c) Warfarin
d) Low molecular weight heparin
e) Aspirin
Warfarin
- Which factor confers the highest risk of thrombosis?
a) Antithrombin deficiency
b) Factor V Leiden
c) Family history of thrombosis
d) Reduced factor 8 level
e) 3 hour plane flight
Antithrombin deficiency
- How does warfarin achieve its anticoagulant effect?
a) Reduce plasma protein C and S
b) Block phospholipid synthesis
c) Reduce plasma procoagulant factors
d) Act as a cofactor for antithrombin
e) Inhibit factor 2, 7, 9 and 10
Reduced plasma procoagulants
- Which patients is most likely to benefit from long-term anticoagulation after a DVT in the following circumstances?
a) 67yo man after flying from Kuala Lumpar
b) 27yo woman during pregnancy
c) 33yo woman on COCP
d) 77yo man after hip replacement
e) 30yo man after a long walk
e) 30yo man after a long walk
- 33yo man has a PE. What is most appropriate 1st line treatment?
a) Compression stockings
b) Aspirin 600mg
c) Therapeutic LMWH
d) Warfarin
e) Fresh frozen plasma
c) Therapeutic LMWH
- 34yo woman developed a DVT after removal of ovarian cyst. Father and brother had DVT. What should you do?
a) Test for antithrombin deficiency
b) Recommend HRT
c) Continue long term anticoagulation
a) Test for antithrombin deficiency
- 22 year old male with cyanotic congenital heart disease. Hb 210g/l and Haematocrit 60%. No splenomegaly. What are the most likely labl test results?
a. JAK2 wildtype + low serum EPO
b. JAK2 V617F positive + raised serum EPO
c. JAK2 wildtype + raised EPO
d. JAK2 V617F positive + low serum EPO
c. JAK2 wildtype + raised EPO
- 38yo woman who had a previous DVT while taking COCP. She then had a 2nd DVT during her 2nd pregnancy. What should you do?
a) Test for Factor V Leiden
b) HRT
c) Continue long term anticoagulation
d) Fixed low-dose warfarin
a) Test for Factor V Leiden
- In certain NHL subtypes, chromosome translocations involving a proto-oncogene are seen. Which statement is NOT true?
a. Follicular NHL: IgH-BCL2
b. Mantle cell lymphoma: IgH-Cyclin D1
c. Follicular NHL: BCR-ABL1
d. Burkitt lymphoma: IgH-cMYC
- 22 year old female with cHL, mediastinal mass. What is the most likely subtype?
a. Lymphocyte depleted
b. Nodular sclerosis
c. Mixed cellularity
d. Lymphocyte rich
b. Nodular sclerosis
Venetoclax in CLL treatment does what?
Blocks BCL protein
Bad progrnosis in CLL
IgHV unmutated and P53 Mutated
Newborn babies in contrast to adults have
a. A higher Hb
b. A lower WBC
c. Smaller red blood cells
d. The same percentage of Haemoglobin F
a. A higher Hb
First line Tx of actue GvHD
pred and ciclosporin
First line prevention of acute GvHD
Methotrexate and ciclosporin
Risk factor for both acuute and chronic GvDH
Incfreased recipient age
Platelet count rises or falls in pregnancy?
Falls
neutrophil count rises or falls in pregnancy?
Rises
Hb conc rises or falls during pregnance?
Falls
telomeric shortening is a feature of both idiopathic and aplasitc anaemia - true/false?
True
- Which of the following statements is correct?
a. In gestational thrombocytopenia, the baby’s platelet count is usually affected
b. Thrombocytopenia is rarely found in associated with pre-eclampsia
c. Thrombotic thrombocytopenic purpura remits spontaneously following delivery
d. The platelet count may fall following delivery in baby’s born to mothers with ITP
d. The platelet count may fall following delivery in baby’s born to mothers with ITP
Most common pancreatic neoplasm
ductal adenocarcinoma
7) Which of these is not associated with fatty change in the liver?
a. Diabetes
b. Hepatitis B
c. Alcohol
hepatitis B
9) Lichen planus is an example of which type of inflammatory reaction pattern?
Lichenoid
10) Where is the epidermis does the bullae in pemphigus vulgaris form?
- Stratum spinosum
14) What percentage of lung cancers in the UK develop in non-smokers?
10-20%
19) How many parameters are included in breast tumour grading?
3
17) What benign lesions most commonly mimic breast cancer on radiology?
– Fat necrosis and radial scar
18) What is the most common malignant breast tumour?
ductal carcinoma
20) Impaired blood supply to the bowel most commonly causes what?
ischaemic colitis
22) What sort of colon polyps most commonly predispose to adenocarcinoma of the colon?
adenomatous
26) What type of amyloid is associated with multiple myeloma
AL
29) Which of the following is not a cause of chronic gastritis?
a. Auto-immunity
b. Infection
c. Drugs
d. Metabolic disease
Metabolic Disease
30) What is the most common brain tumour in adults?
Metastasis
Most common brain tumour in children
Pilocytic astrocytoma
32) What does tumour grade tell us?
Survival
33) Which mutation identifies diffuse astrocytic tumours with a better prognosis?
IDH mutation
36) 5 year-old boy. Had headache and vomiting in the morning for 2 weeks. Symptoms worsened and the vision became blurred. Fundoscopic exam: papilledema. MRI showing cystic cerebellar lesion. A tumour was removed. What is your diagnosis?
d) Pilocytic astrocytoma (WHO grade I)
35) 70 year old male. Seizure following 2 weeks of left arm and leg weakness. MRI showing heterogeneous enhancing right frontal lesion, started on steroids. Partial response to steroids with improved dexterity of the left arm and leg. A tumour was partially resected. What is your diagnosis?
a) Glioblastoma (WHO grade IV)
What herniation doesn’t involve cerebral cortex
tonsillar
39) What percentage of patients who experience a TIA will get a significant infarct within 5 years?
33%
Most common cause of non-traumatic intraparenchymmal haemorrhage
HTN
43) Excluding Parkinson’s disease, which other disorder (often presenting with Parkinsonism) is associated with alpha-synuclein pathology
Multiple system atrophy
Most common thyroid cancer
papillary
cancers screened for in the uk
breast, bowel, cervical
most common site in female genital tract to receive metastatic tuumouurs
ovaries
6) Which has the lowest calcium?
a. Primary hyperparathyroidism
b. Secondary hyperparathyroidism
c. Osteoporosis
d. Paget’s disease of the bone
e. Breast cancer
Secondary hyperparathyroidism
10) How long does it take to see benefit from good glucose control?
15 yrs
11) Which study suggests that tight control increases mortality?
a. Accord
12) Hyperkalaemia is a side effect of which of the following drugs?
a. Furosemide
b. Bendroflumethiazide
c. Salbutamol
d. Ramipril
Ramipril
13) Hypokalaemia is a side-effect of which of the following drugs?
a. Spironolactone
b. Indomethacin
c. Perindopril
d. Furosemide
Furosemide
biggest risk factor for duct ectasia
smoking
Biggest predictor for portal htn
splenomegaly
lung malignancy associated with PTHrp
squamous cell cancer
mutation in familial adenomatous polyposis
APC tumour suppressor gene
chromosome with CFTR mutation
chromosome 7
c diff diagnostic test
toxin stool assay
21) Histology shows benign central scarring surrounded by proliferating glandular tissue. Most likely diagnosis?
radial scar
stage of breast cancer targetted by screening
DCIS
signet ring cells and ovarian tumour
Krunkenburg tumour
CML management
imatinib
globin genes located on which chromosomes?
11 and 16