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Stack #84864

Most Frequent Causes - USMLE Step 1 - First Aid

Most Frequent Cause of...(Answer)
Addison's Autoimmune (2nd MC: infection)
Aneurysm, dissecting HTN
Aortic aneurysm, abdominal & descending aorta Atherosclerosis
Aortic aneurysm, ascending 3° syphilis
Bacterial meningitis (adult) Neisseria meningitidis
Bacterial meningitis (elderly) Strep. pneumo.
Bacterial meningitis (kids) H. influenzae type B
Bacterial meningitis (infants) E. coli
Cancer assoc. w/ AIDS Kaposi's sarcoma
Congenital adrenal hyperplasia 21-hydroxylase defic.
Cretinism Iodine defic./hypothyroidism
Cushing's syndrome Corticosteroids (2nd MC: ↑ACTH by pituitary)
Death in CML Blast crisis
Death in SLE Lupus nephropathy
Dementia Alzheimer's (2nd MC: multi-infarct)
DIC Gram-neg. sepsis, obstetric complications, cancer, burn trauma
Ejection click Aortic/pulmonic stenosis
Food poisoning S. aureus
Glomerulonephritis (adults) IgA nephropathy (Berger's disease)
Hematoma—epidural Middle meningeal a. (FAST)
Hematoma—subdural Bridging v. (trauma; slow)
Hemochromatosis Multiple blood transfusions (can → CHF and ↑ risk of HCC)
Hepatic cirrhosis EtOH
Hepatocellular carcinoma Cirrhotic liver (often assoc. w/ Hep B and C)
Holosystolic murmur VSD, tricuspid regurg., mitral regurg.
HTN, 2° Renal disease
Hypoparathyroidism Thyroidectomy
Hypopituitarism Adenoma
Infection in blood transfusion Hep C
Infection in burn victims Pseudomonas
Leukemia (adults) AML
"Machine-like" murmur PDA
Mental retardation Down's (2nd MC: Fragile X)
MI Atherosclerosis
Mitral valve stenosis Rheumatic heart disease
Myocarditis Coxsackie B
NephrOtic syndrome (adults) Membranous GN
NephrOtic syndrome (kids) MCD (assoc. w/ infections/vaccinations; ℞= corticosteroids)
Opening snap Mitral stenosis
Osteomyelitis S. aureus
Osteomyelitis, sickle cell disease Salmonella
Osteomyelitis, IVDA Pseudomonas
Pancreatitis (acute) EtOH & gallstones
Pancreatitis (chronic) EtOH (adults), cystic fibrosis (kids)
Peau d'orange Breast cancer
PID Neisseria gonorrhoeae (monoarticular arthritis)
Pneumonia, hospital-acquired Klebsiella
Pneumonia, cystic fibrosis, burn infections Pseudomonas aeruginosa
Preventable blindness Chlamydia
1° amenorrhea Turner's (XO)
1° hyperaldosteronism Adenoma of adrenal cortex
1° hyperparathyroidism Adenoma
Pulmonary HTN COPD
R. heart failure, pulmonary cause Cor pulmonale
R-sided heart failure L-sided heart failure
Sheehan's syndrome Postpartum pituitarty infartion, 2° to hemorrhage
SIADH Small cell carcinoma of lung
UTI E. coli
UTI, young ♀ E. coli & Staph. saprophyticus
Created by: CopaceticMedic