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  1. The difference between Effect modification and Confounding bias

    Jan 5, 2012 · 2- Effect modification : OCPs ( exposure ) Breast cancer (outcome ) Family history of breast cancer is an effect modification here. Can you guess why ? Asbestos ( exposure ) Lung …

  2. Biostats ques | USMLE Forums

    Mar 5, 2013 · A clinical trial was conducted to evaluate the effect of metoprolol, a selective beta blocker, on overall and cardiovascular mortallities in patients with chronic heart failure. The patients with …

  3. HCM Vs MVP | USMLE Forums

    Aug 2, 2011 · Dear everyone I would like to know the effect of increasing afterload on murmurs of hypertrophic cardiomyopathy and Mitral valve prolapse. Correct me if I am wrong in the following: …

  4. Anticonvulsant Medication Question - USMLE Forums

    Dec 12, 2009 · 12 year old child with a history of severe seizure disorder that does not respond to typical anti-seizure medication protocol, he has been on a new seizure medication for 6 weeks and presents …

  5. Pharmacology MCQs- 103 | USMLE Forums

    Nov 19, 2017 · A 23-year-old man who takes anti-mycobacterial therapy for pulmonary tuberculosis presents to the clinic because of recent visual disturbance and pain with movement of his left eye. …

  6. The Two MEN - USMLE Forums

    Sep 17, 2010 · Multiple Endocrine Neoplasia :o MEN I is 3 P's (Pituitary, Parathyroid, Pancreas). MEN II is 2 C's (Catecholamines ie. pheochromocytome, carcinoma of medulla of thyroid) and Parathyroid …

  7. Enteropeptidase Deficiency! - USMLE Forums

    Apr 20, 2010 · A young boy presents with failure to thrive. Biochemical analysis of a duodenal aspirate after a meal reveals a deficiency of enteropeptidase (enterokinase). The levels of which of the …

  8. Sensitivity, Specificity, PPV, and NPV | USMLE Forums

    May 6, 2016 · hey, i added another lecture to my youtube channel. it quickly explains the effect that changes in the cut-off level for a positive test and the prevalence of a disease have on the sensitivity, …

  9. Pneumonia bug - USMLE Forums

    Feb 22, 2010 · A 36 years HIV positive man presented with classical symptoms of pneumonia. Chest X ray showed bilateral consolidation. Organism cultured from the sputum was lysed by …

  10. Cause of cancer cachexia - USMLE Forums

    Jul 28, 2009 · what is the cause of cancer cachexia? is it TNF or Interleukin 2?