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MDCalc is a free online medical reference for healthcare professionals that provides point-of-care clinical decision-support tools, including medical calculators, scoring systems, and algorithms. [1] MDCalc is also a mobile and web app. [ 2 ] The decision-support tools are based on published clinical research, [ 3 ] and MDCalc’s content is ...
A medical calculator is a type of medical computer software, whose purpose is to allow easy calculation of various scores and indices, presenting the user with a friendly interface that hides the complexity of the formulas. Most offer further information such as result interpretation guides and medical literature references. [1]
Examples of such situations include: “Remembering where to find things which have been put in a different place from usual” and “Handling money for shopping”. Each situation is rated by the informant for amount of change over the previous 10 years, using the following scale: 1. Much improved, 2. A bit improved, 3. Not much change, 4.
The Personality and Preference Inventory (PAPI) is a personality test that is used to determine a person's personality traits in the workplace. The questionnaire was designed to reveal a person's behaviours and preferences that may affect their suitability for various vocations or specific vacant positions. [ 1 ]
APACHE II ("Acute Physiology and Chronic Health Evaluation II") is a severity-of-disease classification system, [1] one of several ICU scoring systems.It is applied within 24 hours of admission of a patient to an intensive care unit (ICU): an integer score from 0 to 71 is computed based on several measurements; higher scores correspond to more severe disease and a higher risk of death.
The Revised Cardiac Risk Index (RCRI) is a tool used to estimate a patient's risk of perioperative cardiac complications. The RCRI and similar clinical prediction tools are derived by looking for an association between preoperative variables (e.g., patient's age, type of surgery, comorbid diagnoses, or laboratory data) and the risk for cardiac complications in a cohort of surgical patients ...
The cutoff normal individuals from those with primary hyperaldosteronism is significantly affected by the conditions of testing, such as posture and time of day. On average, an ARR cutoff of 23.6 ng/dL per ng/(mL·h), expressed in alternative units as 651 pmol/L per μg/(L·h), has been estimated to have a sensitivity of 97% and specificity of 94%. [2]
50-59 years old: +1 point; 60-69 years old: +2 points; 70-79 years old: +3 points; 80 years old or more: +4 points; Scores are summed to provide a total score to predict mortality. Currently 17 categories are considered in the popular Charlson/Deyo variant, [7] instead of 19 in the original score. [8] The weights were also adapted in 2003. [9]