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Summary USMLE Step 1 - Index Review Guide for each High Yield topic organized by Organ System and General Principle

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Self-made index review guide for Step 1 examination organized by General Principles and Organ System. This is just a specialized self made sheet to help students organize their preparation for the test, it is not a full detailed review or study paper, very few topics or details may or may not be added since this is just a guide used as a base to facilitate the studying journey. This is a organized file with the most high yield topics for each system, that way students can be one step ahead in their preparation for the examination and facilitate the initial starting point. Some pathologies are abbreviated just to fast paced yourself over the topic and make sure you cover it.. Feel free to leave your review, very appreciated, organizing this really helped me to prepare for the text very effectively, i hope it work the same for each one of you, you will find it very useful.

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Voorbeeld van de inhoud

GENERAL PRINCIPLES

A. BIOCHEMISTRY
● DNA molecular structure, types of mutation, repair mechanism, key enzymes,
transcription, translation, protein synthesis
● Histone structure, activation and deactivation
● Types of RNA polymerases and DNA polymerases, similarities and differences,
functions.
● Purine and Pyrimidine synthesis: key limiting enzymes, cofactors, molecules
involved
● Nucleotides vs nucleosides vs synthesis of genetics bases
● Purine salvage pathway
● RNA processing and regulation
● Lac operon
● Spliceosome
● Ribosome structure, subtypes, cell origins
● t-RNA, function, codons, anticodon, sequences, start/stop codons
● Protein synthesis : initiation, regulation and termination
● Post Translational modifications
● Cell structure, organelles and their intrinsic function.
● Cytoskeleton, microtubules and cell cycle: regulatory signals, kinases and
cyclins.
● Peroxisome: function, related pathologies (HIGH YIELD)
● Collagen / Elastin synthesis and related pathologies
● Laboratory techniques: PCR, ELISA, Flow cytometry, Microarrays, different types
of blotting, FISH, karyotyping
● Imprinting disorders
● Types of inheritance and chart genetic frequencies
● Henderson hasselbalch equation
● Genetic terminology
● Cystic fibrosis (HIGH YIELD)
● Muscular dystrophies and their genetics implication (HIGH YIELD)
● I-cell Disease
● Rett syndrome
● Fragile X syndrome
● Trisomies 21, 18 and 13: markers, signs and symptoms, genetic pathways
involved
● Cri du chat syndrome
● Williams syndrome
● Fat soluble vitamins: molecular function, deficiencies and intoxication
● Water soluble vitamin: molecular function, deficiencies and intoxication
● Malnutrition anomalies
● Ethanol mechanism

, ● Glycolysis, krebs, oxidative phosphorylation, gluconeogenesis: all key enzyme
rate limiting steps, biological function and implication
● Hexokinase vs Glucokinase: Vmax, Km, and target organs, enzymes and
function
● Pyruvate Metabolic pathway
● Pentose phosphate pathway
● G6P deficiency
● Fructose metabolic pathologies (HIGH YIELD)
● Sorbitol pathway
● Lactase deficiency
● Amino acids: acid, bases, neutral, essential vs nonessential, and metabolic
synthesis pathways, derivatives and key cofactors involved
● Urea cycle, ammonia cycle and related pathologies
● Catecholamine synthesis, cofactors involved, and enzymes
● PKU: enzymes deficiencies, signs and symptoms, treatment
● Maple syrup syndrome, Alkaptonuria, Hyperammonemia, Homocystinuria and
Cystinuria, Propionic acidemia, Pyruvate kinase deficiency
● Glucagon synthesis: insulin regulation, key enzymes, and metabolic pathway
● Glycogen storage disease (HIGH YIELD)
● LSD diseases (High yield)
● Ketone body formation: synthesis and degradation pathways
● Fed vs Fasted state
● Lipid transport, fatty acid synthesis and degradation, lipoproteins and cholesterol
metabolic pathway.
● Familial dyslipidemias

B. IMMUNOLOGY
● Lymph node structure, histological analysis, cell locations
● Palpable vs non palpable lymphs and drainage locations
● Spleen structure, histological analysis and cell locations
● Innate vs Adaptive immunity
● MHC class 1 vs class 2: function, similarities and differences, molecular structure
function.
● HLA subtypes and related disease
● T cells: regulatory cytokines, interleukins, immunological pathways, positive and
negative selection in cell production, cytotoxic, regulatory and naive cells.
● T cells vs B cells: membrane markers, activation and maturation, costimulatory
signals
● Class switching and somatic hypermutation
● VDJ genetic recombination
● Immunoglobulin structure, function, heavy and light chains
● Classical vs alternative vs MAC complement and regulatory/ inhibitory pathways
● Antibody functions and different subtypes
● Complement disorders

, ● Interleukins and cytokines functions
● T cell surface protein markers
● Anergy, cell memory and antigen presentation
● Active vs passive immunity
● VAccination: live vs attenuated vaccines, virus related, toxoid vaccines,
polysaccharide, subunit and recombinant vaccines.
● Types of hypersensitivity
● Blood transfusion reactions
● Autoantibodies and related pathologies
● Immunodeficiencies
● Transplant rejections

C. MICROBIOLOGY
● Bacterial cell structure: gram positive vs negative: family, structures, similarities
and differences
● Gram stains and cell culture/agars
● Bacterial virulence factors
● Intracellular vs extracellular bacteria
● Encapsulated bacteria
● Aerobes vs Anaerobes
● Staphylococcus vs Streptococcus: family, hemolysis, bacterial manifestations and
diseases related
● Clostridium family
● Bacterial genetic transformation, conjugation, transduction, transposition
● Exotoxins vs Endotoxins: pathological features, biological manifestations and
organisms related
● Corynebacterium, Listeria, Nocardia, Actinomyces
● Tuberculosis: primary, secondary and miliary TB
● Gram negative rods, diplococcus and bacilli cell features
● Enterococci family
● Mycoplasma
● H influenza
● Bukorderia
● Brucella, Legionella, Pseudomonas
● Salmonella vs Shigella
● E. coli family
● Klebsiella, Campylobacter, Vibrio, Helicobacter pylori
● Spirochetes, Gardenella
● Lyme Disease
● Leptospirosis: Weils disease
● Chlamydia serotypes, family and manifestations
● Syphilis: Primary , Secondary, Tertiary, diagnosis and features
● Jarish-Herxheimer reaction
● Zoonotic bacteria

, ● Vector borne disease: Lice, ticks and fleas
● Systemic mycosis: manifestation, regional zones, modes of transmission,
pathological features
● Opportunistic fungal infections: signs and symptoms, manifestations, diagnosis,
pathological features, treatment.
● CNS infection protozoa
● Hematological protozoa
● Protozoa visceral infection and others
● Nematodes, cestodes, trematodes: diagnosis, pathological features, signs and
symptoms, transmission routes and treatment
● Ectoparasites
● Viral structural features, morphology, genetics
● Naked vs Enveloped viruses
● Dna vs RNA viruses: manifestation, families, signs and symptoms, pathological
features
● Herpesviridae family
● Hepatitis viruses: families, pathological features, transmission routes, serological
markers of Hep B
● HIV: sign symptoms, manifestations, immunological features and receptors,
treatment, opportunistic infections
● Food borne illnesses
● Diarrheal diseases: bloody vs watery
● Causes of pneumonia: common cause organism, ages, pathological features
● Meningitis and cerebrospinal fluid findings: bacteria, viral and fungal
● Types of rashes, distribution, causes and manifestation, organisms related
● Urinary tract infection
● Vaginal diseases
● TORCH infections
● Bugs affection in unvaccinated individuals

D. PATHOLOGY
● Cell structure and intrinsic morphology, environmental adaptations and injury
response.
● Apoptosis: Intrinsic vs Extrinsic
● Necrosis: Coagulative, Liquefactive, Fat, Fibrinoid, and Gangrenous
● Ischemia, watershed zones and vulnerability
● Red vs Pale infarct
● Types of calcification
● Lipofuscin
● Ionizing radiation
● Amyloidosis: types, pathological features, structures affected, genetics and
histological manifestation.
● Inflammation and its variants, Acute phase reactants, ESR

, ●Acute vs Chronic Inflammation: pathological features, cellular pathways, cells
involved, physical features and relationships.
● Leukocyte extravasation process: Marg / Rolling, Tight binding adhesion,
Diapedesis/ transmigration, and Migration. Learn all the cells involved and the
receptors for each adequate step of the process .
● Wound healing and tissue mediator molecules. Phase of wound healing
throughout time.
● Noninfectious vs Infectious causes of granulating inflammation (Non Caseating
vs caseating), cell involvements, immune responses, pathologies related to each.
● Scar formation: Hypertrophic vs Keloid
● Neoplasia, Dysplasia, Metaplasia: genetics, receptors involved, pathological
features, diseases related to each important process (tumors, syndromes,
autoimmune diseases)
● Tumor grade vs stage
● Cancer hallmarks and disease related with their respective pathological features
● Immune checkpoint regulation, interaction, cell involvement and how cancer
escapes this mechanism
● Cancer epidemiology: incidence, recurrence, most common causes either by
age, gender, ethnicity and geographical regions. Identify metastases routes for
various tumor based on their location and spread (lymphatic or hematogenous)
● Oncogenes vs Tumor suppressor genes: genetics, pathological features,
receptors involved, diseases related.
● Carcinogenic molecules
● Oncogenic microorganisms, receptors involved, diseases related and exposure
relationship to others pathologies.
● Serum tumor markers: genetics, tumors/disease involved, sensitivity and
specificity to each diagnosis.
● Immunohistochemical stains to identify tumors and their respective pathologies.
● Paraneoplastic syndromes: hormones related, pathological features, signs and
symptoms, genetic involvement, organs involved.
● Normal aging process for each individual organ system and changes that ocurr
with time.
E. PHARMACOLOGY
● Enzyme Kinetics: Michaelis-Menten vs Lineweaver-burk plot
● Competitive inhibitors (reversible and irreversible), Noncompetitive inhibitors:
Changes in Km, Vmax, Substrate and active site location and how it affects
enzyme kinetics.
● Bioavailability, Vd, Clearance, Halflife, Dosage Calculation (loading and
maintenance dose)
● Phase 1 and Phase 2 drug metabolism
● Zero order vs First order kinetics
● Drug elimination: acid vs basic molecules
● Efficacy vs Potency: CIR, CII, NCI
● Therapeutic index

, ● Autonomic receptors, drugs, acetylcholine metabolism, muscarinic agonist and
antagonist receptors, cellular receptor response, mechanisms and treatment
conditions.
● Adrenergic receptors: receptor locations, response, mechanisms of action, drug
involvement and treatment condition for each individual pharmaceutical.
● G- protein second messenger receptors, mechanisms of action, anatomical
location and relationship to each pharmaceutical drug either if its an inhibitor or
promoter.
● Cholinomimetic agents, direct and indirect agonist drugs, usage, and receptors
involved.
● Acetylcholinesterase poisoning: signs and symptoms, treatment and
management.
● Atropine, sympathomimetics (direct and indirect), usage, mechanism of action,
receptors involved, management and treatment conditions.
● Physiologic effects of sympathomimetics on Systolic, diastolic, MAP, pulse
pressure and CO.
● Alpha 1 vs alpha 2, sympatholytics, receptors involved, treatment and
management conditions.
● Beta - Blockers: receptors involved, usage, selective or nonselective
mechanisms and adverse effects.
● Phosphodiester inhibitors: usage, mechanism of action, side effects, treatment
and management condition, pathologies related to usage of each one.
● Seafood toxins
● Age-related changes in pharmacodynamic and Beers criteria
● Treatment for toxicities
● Drug adverse effects and toxicity for each pharmaceutical in all organ system.
● Cytochrome promoter vs inhibitors vs substrate drugs
● Sulfa drugs and pathological features related.




ORGAN SYSTEM

A. CARDIOLOGY
● Heart development morphogenesis (valve, chamber, vessels and their
derivatives) and embryology
● Umbilical cord arteries and vein pathways (fetal circulation)
● Aortic arch derivatives
● Anatomy and chamber positioning
● CO, HR, preload and afterload physiological changes
● Ejection fraction, pulse pressure and MAP
● Starling, cardiac and vascular function curves changes
● Cardiac vessel distribution resistance in parallel

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Geüpload op
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Aantal pagina's
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Geschreven in
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