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64 Cards in this Set
- Front
- Back
HIV components/features |
# Segmented enveloped virus # 2 RNA strands # 3 enzymes : Reverse transcriptase, Protease and Integrase # gp 120 |
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Can HIV can be transmitted through saliva and kissing? |
No it can't |
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HIV transmission |
# Blood # Sexual intercourse (Semen & Vaginal fluid) # Vertical transmission (Vaginal delivery, breast milk) |
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HIV classification by CDC |
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HIV classification by CDC |
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Typically HIV symptoms |
# Fever # Fatigue # HIV wasting syndrome (Weight loss and Diarrhoea of unidentifiable cause) |
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Oral conditions associated with HIV can be divided into 5 groups, what are they? |
Oral conditions due to 1) Microbiological infections (bacteria, fungi like oral thrust, etc) 2) Oral neoplasms 3) Lesion of unknown cause 4) Conditions associated with HIV drugs 5) Neurological conditions |
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Systemic vs Local anaphylactic reaction |
1) Systemic : Penicillin reaction, bee & wasp stings, scorpion stings 2) Local (atopy) : Asthma, atopic dermatitis, hay fever, Reaction to foods, nuts Bee stings can be local but in case of patients that are allergic to bee stings, it's systemic |
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Types of hypersensitivity reactions and their time of onset |
# Type I & II - 15-30 mins after exposure # Type III - 3-10 hours # Type IV - lasts hours or days |
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Examples of cytotoxic (type 2) hypersensitivity reaction |
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What drugs are employed in type 3 hypersensitivity to prevent antibody formation |
Corticosteroids |
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Type 4 hypersensitivity is the reaction seen in which kind of microbiological agents |
Intracellular microbes (viruses, tuberculosis, parasites, fungi) |
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Examples of type 4 hypersensitivity |
# Tuberculin skin test & TB # Allergic Contact dermatitis (different from atopic dermatitis) # Graft rejection |
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Types of autoimmune diseases |
# Organ specific # Organ non-specific (systemic) |
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Organ specific autoimmune disease |
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Organ non-specific autoimmune diseases |
You're wondering why lupus is autoimmune. Remember the antibodies are formed against your body's own DNA molecules |
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Types of lupus erythematosus |
# Systemic lupus erythematosus (SLE) # Discoid lupus erythematosus (DLE; primarily affects the skin involving the cheeks and nose) # Drug-induced lupus erythematosus # Neonatal lupus erythematosus Both systemic and discoid lupus are autoimmune diseases |
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Discoid lupus erythematosus (more of an organ specific autoimmune disease) |
# primarily appear as skin lesions around the cheeks and nose |
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Which HLA molecules fall into MHC class I and II. What T cells promote function of those molecules |
# MHC class 1 : HLA A, B & C # MHC class 2: HLA D # MHC class 3: complement system Class 1 functions by cytotoxic (CD8+) and Class 2 functions by Helper T cells (CD4+) |
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Types of transplant rejection reaction |
# Hyperacute rejection # Acute rejection # Chronic rejection |
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Explain the various transplant rejections. What type of molecules/cells mediate the occurrence of each of them |
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Does advanced maternal age increase the risk of mutation in offspring |
Yes, it does |
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Types of genetic mutations |
1) Single gene/Mendelian mutation 2) Multiple gene/Polygenic/Multifactorial mutation 3) Chromosomal mutation (addition of or removal of a whole chromosome) 4) Mitochondrial DNA mutation |
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What causes Duchenne muscular dystrophy |
Dystrophin |
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Glomerular diseases are more common than hypertension and diabetes. T/F |
False |
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Epidemiology of Glomerular diseases |
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Glomerulus, mesangium, basement membrane, podocytes image |
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Methods the glomerular cells respond to injury |
P. I. P 1) Phagocytosis (by mesangial cells) 2) Proliferation 3) Irreversible cell damage + fibrosis |
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Do immune complexes always cause diseases? |
No they don't always |
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The glomerular Filtration barrier has how many layers of negative charge. What are they? |
# 2 layers # Glomerular endothelium and the Basement membrane |
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The glomerular Filtration barrier has how many layers of negative charge. What are they? |
# 2 layers # Glomerular endothelium and the Basement membrane |
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Glomerular disease that cause nephritic syndrome |
# Circulating immune complex glomerulonephritis (eg post strep glomerulonephritis, SLE) # Anti-GBM glomerulonephritis (rapidly progressive glomerulonephritis) # Alport syndrome (mutation in collagen of GBM) |
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Glomerular disease that cause nephrotic syndrome |
# In-situ immune complex glomerulonephritis # NPHS 1 & 2 gene mutation |
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The effect or appearance of the glomerulus / basement membrane in conditions of nephritis syndrome is |
# Swiss cheese appearance or Sieve effect |
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What is goodpasture syndrome |
# AKA Anti-GBM glomerulonephritis # It's an autoimmune disease & type 2 hypersensitivity condition # Auto antibodies are directly against alpha-3 chain of type 4 collagen of basement membrane in KIDNEY & LUNGS # This causes hematuria (nephritic syndrome) and rapidly progressive renal failure in kidneys; and hemoptysis and cough in lungs |
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What factor is known to regulate C3 convertase? What is the name of the auto antibody that stabilize c3 convertase |
# H factor # C3 nephritic factor (C3NF) |
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Podocytes injury is classified into? Where are these injuries seen |
# Reversible (in immature podocytes) # Irreversible injury with scarring (in mature podocytes cos they don't proliferate) # Reversible injury is seen in Minimal Change Disease (which is in children cos their podocytes are immature and still developing) # Irreversible injury is seen in Focal Segmental Glomerulosclerosis (FSGS) [in adults cos their podocytes are already developed and mature] |
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Genetic causes of Glomerular diseases |
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Causes of Nephritic syndrome |
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Causes of Nephrotic syndrome |
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APOL 1 gene has been linked to non diabetic nephropathy. T/F |
True |
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APOL 1 GENE |
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Define the terms Segmental, Focal, global, diffuse, membranous with respect to kidney |
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The commonest and 2nd commonest cause of lower GI bleeding in adults and children |
In adults Commonest: Diverticulosis 2nd Commonest: Telangiectasia In children/young people Commonest: Hemorrhoids |
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Commonest cause of upper GI bleeding is |
Peptic ulcer disease |
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Classes of GI bleeding |
# Upper vs Lower GI bleeding # Occult vs Overt # Obscure vs Obvious |
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Grading of finger clubbing |
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Mention the chest/thoracic contours |
# Barrel chest # Pectus excavatum (funnel-shaped) # Pectus carinatum # Kyphosis # Scoliosis # Kyphoscoliosis |
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Images of chest/thoracic contours |
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Conditions that deviate trachea and mediastinum to affected side |
# Pulmonary fibrosis # Atelectasis |
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Conditions that deviate trachea and mediastinum to unaffected side |
# Pnemothorax # Pleural effusion |
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Conditions that do not deviate trachea and mediastinum |
Consolidation COPD |
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What happens to fremitus on COPD |
Decreased fremitus |
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Lung is hyper-resonant to percussion in what 2 cases |
# Pneumothorax # COPD (hyperinflation) |
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Which respiratory infections are more common; Upper or lower resp tract. What are they commonly caused by? What bacteria is also known to cause URTIs? What % is attributed to the bacteria? |
# Upper respiratory tract infection (URTI) # Viruses. # Streptococcus pyogenes (15%) |
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Spectrum of diseases in URTI |
# Rhinitis # Sinusitis # Rhinosinusitis # Pharyngitis/Tonsillitis # Laryngitis # Tracheitis |
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Presentation of URTI |
# Nasal discharge ; nasal congestion # Sneezing # Sore throat & cough # Fever, malaise # Loss of voice # Headaches |
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Guidelines for prescribing antibiotics for upper respiratory tract infection |
Depending on the severity, one of the 3 should be done 1) No prescribing (most URTI are of viral origin & will resolve spontaneously) 2) Delayed prescribing (if no recovery after giving patient time to recover) 3) Immediate prescribing |
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Indications for immediate antibiotics prescription in URTI |
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Centor's criteria for strep pharyngitisl |
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Antibiotics used for URTI when indicated |
# Penicillin (amoxicillin, amoxicillin + clavulanate) # 1st and 2nd generation cephalosporins Note: Amoxicillin + clavulanate is called Augmentin |
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Respiratory causes of finger clubbing |
# Suppurative lung disease (like bronchiectasis, lung abscesses, empyema) # Pulmonary fibrosis # Lung malignancy # Complicated TB # Mesothelioma |
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Chest x ray findings in a patient with Pulmonary TB |
# Cavitation # Pulmonary fibrosis |
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Difference between erythema and petechaie/purpura |
# Erythema is blanchable (bcos it is due to vasodilation, pressure constrict the vessel back causing the skin to appear normal) # Petechaie/purpura/ecchymoses are Non-blanchable |