Prognostic index for adults age 60 and over.

Calculates average annual expansion rate and lifetime risk of rupture.

Decision tool for diagnosis and management of sinusitis.

This classic decision tool is extremely useful in primary care evaluation of sore throat.

Adult Attention Deficit Hyperactivity Disorder Questionnaire.

Calculator for assessing for alcohol use disorder.

The ACCP Stroke Risk Calculator is used to help decide whether or not to use anticoagulant.

Comprehensive decision tool for anemia workup from start to finish.

For arthritis evaluation - calculator to determine if pain is at joint.

Calculator to evaluate for non-organic low back pain.

Calculator for prediction of hospital mortality and mechanical ventilation requirement in COPD admissions.

BMI, AST to ALT Ratio, and Diabetes Mellitus are the items in this calculator.

Activities of Daily Living are an important geriatric assessment for independence.

Calculator for the Body-mass index, airflow Obstruction, Dyspnea, and Exercise capacity (BODE) index in chronic obstructive pulmonary disease.

Body Mass Index (BMI) calculator with weight cutoffs for different categories.

Calculator with validated clinical decision rule to predict Coronary Artery Disease as a cause of chest pain

Calculator for predicting pressure sore risk.

Probability that dyspneic patient in the ER is having a CHF exacerbation

BIMS is like a mini-mental status exam. It is part of the MDS (Minimum Data Set) used in nursing homes.

Screening calculator for alcoholism.

Screening Questionnaire for Drug and Alcohol Addiction

Scoring system for severity of delirium.

Evaluate for need of C-spine Xray. This calculator applies the Canadian C-Spine Rule to determine whether Xray is recommended.

Decision tool gives current age-based Pap Smear recommendations. It also provides the recommendations for action on the basis of Pap Smear results. From the ASCCP guidelines.

Calculates stroke risk in atrial fibrillation.

The CHADS2 score is used to help decide whether or not to prescribe an anticoagulant for atrial fibrillation

The 17-item Charlson Comborbidity Index with 12-month mortality and 10-year prognostic information.

Checklist for determination of ability to make treatment decisions.

This calculator is intended to help guide evaluation for chest pain in regards to the likelihood of non-cardiac causes

11-item decision tool for predicting CHF exacerbation mortality.

Liver failure prognosis calculator

A decision tool for initial management of Chronic Hepatitis B.

The jumping off point for chronic, inflammatory arthritis diagnostic work. Based on the amazing algorithm(s) by Dr. Lipsky from 1997.

Calculator to screen for Chronic Obstructive Pulmonary Disease. A score of 5 or more may indicate COPD

This is a calculator for monitoring and improving control for patients currently taking long-term control medication. For patients not taking long-term control medication, please see this page.

This is a calculator for patients not currently taking long-term control medication. For patients who are taking long-term control medication, please see

A calculator to determine probability of rotator cuff tear.

Calculator estimates glomerular filtration rate (GFR).

Red flag checklist for constipation.

Calculator for initiating contraception.

A screening tool for co-morbid depression in dementia patients

For adjustment of warfarin (coumadin). Includes dosage change and follow up recommendations.

Decision tool for hospitalization of nursing home residents for pneumonia.

Decision rules to help determine outpatient vs. inpatient treatment for pneumonia.

Risk calculator for development of delirium.

Based on 1986 study, stratifies patients into 3 cardiac risk groups based on age, prior MI, angina, pulmonary edema, aortic stenosis, arrhythmia, emergent surgery, and general medical status.

2 question calculator for diagnosis of incontinence.

Calculator for diagnosis of rheumatoid arthritis.

Calculator for diagnosis of Systemic Sclerosis.

Calculator for diagnosis of multiple sclerosis.

Calculator for determination of likelihood that chest pain is cardiac.

Calculator for diagnosis of pneumonia in adults.

Produces a differential diagnosis list with lots of quick links to other references.

Calculator for assessing the appropriateness of chronic opioid therapy.

A calculator for the diagnosis of diverticulitis.

Calculator with questions regarding drug use.

Calculator for diagnosis of Attention Deficit Hyperactivity Disorder

A validated set of criteria based on the patient's family history, their own CVD history, their untreated lipid levels and physical signs. The subsequent score categorizes patients by the likelihood of Familial Hypercholesterolemia (FH) diagnosis.

Diagnostic rule to guide testing for UTI in unwell children under 5 years

This calculator is intended to help guide evaluation for dyspepsia and guide the workup once that diagnosis is established.

Classifies patients cardiac risk into 3 zones based on 5 factors - age, diabetes diagnosis, angina history, previous MI, and previous CHF.

Decision tool for diagnosis of the claudication symptoms of peripheral vascular disease (PVD).

Useful in screening patients for sleep apnea.

This tool is for Established Patient Visits. An established patient has been seen by the provider or a member of his practice/group in the last 3 years; a new patient has not. For New Patient visits,

Calculator is useful in assessing chronic pain.

Differential diagnosis of foodborne illness on the basis of onset of symptoms, symptom profile, symptom duration, and possible sources.

Pharyngitis calculator to aid diagnosis and treatment of patients 5 years and older is based on 5 items.

Fibromyalgia diagnosis calculator which includes the Widespread Pain Index (WPI).

Mortality score useful for long-term care residents.

Decision tool for need for further cardiac workup ahead of surgery.

This is obsolete and really for historically purposes only. Please see New calculator based on 2013 ACC/AHA guidelines

Diagnostic calculator based on 7 major criteria and 6 minor criteria.

Measurement of functional ability

Measurement of functional abilities.

How many activities that require 4 or more METS can the patient do?

This calculator is designed to help you adjust your gabapentin to better control your pain. It can help you find the most effective dose to control your pain.

Calculator with screen for Generalized Anxiety Disorder (GAD)

SUMMARY: Free, unvalidated questionnaire that can be used in assessment of asthma symptom control. The questions are from a 1995 NIH Asthma Pocket Guide referenced in the National Asthma Education and Prevention Program (NAEPP) guidelines

Calculates the likelihood of GERD being present given responses to 6 symptom-related questions.

A screening tool for depression in the elderly

Calculator for assessment of cardiovascular risk based on 2013 ACC/AHA guidelines.

Calculator with decision tool for ICU admission for chest pain.

Diagnostic calculator for gouty arthritis which doesn't require joint fluid analysis.

8 item calculator for mortality in hospital and at 6 months.

Calculator determines risk for bleeding with anticoagulation.

Life expectancy calculator which includes a few (but not all, of course) factors that affect longevity.

Decision tool to assess impact of hearing loss.

Indication: Chest Pain risk stratification in the emergency department

Risk for HIT - Heparin Induced Thrombocytopenia

A Hepatitis B decision tool for interpretation of initial screening tests.

"Powerful but fragile, hope is." Nobody talks that way. And Yoda never said anything about hope, but if he did that's how he would have said it. A 13-item checklist to strike back against despair.

Calculator for risk of avoidable readmission.

This tool helps you plan the weight gain you will need to travel to other planets in our solar system

Calculator to determine whether joint pain is related to inflammation or not.

This calculator is intended to help calculate a corrected insulin dose for adults with hyperglycemia.

Sliding scales for different levels of insulin sensitivity.

Calculator for assessing impotence/erectile dysfunction.

Calculator for interpretation of fetal heart tracings.

How to proceed with thyroid function testing.

Activities of Daily Living (ADL) calculator.

Calculator for risk for avoidable readmission.

Useful for identifying current functional level and for detecting trends toward improvement or deterioration.

This calculator is intended to help a patient adjust their own long-acting insulin.

Decision tool to help answer the question posed by The Monotones, Elvis Costello, The Clash, The Black Eyed Peas, Whitney Houston, The Bee Gees, Whitesnake, Stevie Wonder, and nearly every other human on the planet.

Checklist with red flags for low back pain.

Mortality calculator for patients with peritonitis.

Calculator for estimation of glomerular filtration rate (GFR).

This is the full deal. Not to be confused with the mini mental status exam.

Suggested medical (lab) monitoring for antipsychotic medications.

This is another one that is better than the Mini Mental Status Exam (MMSE)

This calculator provides the MELD score and mortality estimate for patients with cirrhosis. The score is used in liver allocation in the Organ Procurement and Transplantation Network (OPTN).

In-hospital assessment for risk of clinical deterioration.

Calculates the likelihood dementia is due to vascular causes

Calculator for screening for mood disorders.

This tool provides suggestions for Magnetic Resonance Imaging (MRI) or Computed Tomography (CT) studies based on body area and clinical condition. It includes contrast recommendations where applicable.

Calculator for acute assessment of stroke systems

This tool is for New Patient Visits. A new patient has not been seen by the provider or a member of his practice/group in the last 3 years; an established patient has. For Established Patient visits,

Evaluate for need of C-spine Xray. This calculator applies the NEXUS C-Spine Rule to determine whether Xray is recommended.

Calculator for predicting pressure sore risk.

A nutrition screening questionnaire and decision tool.

Postoperative 90-day mortality risk for bariatric surgery

This decision tool assists with management of patients with diabetic nephropathy (diabetes mellitus-related chronic kidney disease, stages III, IV, and V). It is not intended to manage CKD patients on dialysis.

Calculator for risk of mortality in patients with syncope.

The Opioid Risk Tool (ORT) is an office-based assessment designed to predict which patients may develop aberrant, drug-related behaviors based on known risk factors associated with abuse or addiction.

Calculator for osteoporosis risk assessment.

Self-assessment calculator for osteoporosis risk.

Calculator for assessment of disability related to chronic low back pain.

A calculator for diagnosing and managing acute otitis media.

Calculators help decide whether or not to X-ray the foot or ankle.

Calculator for decision whether to x-ray the knee or not. Does not apply to children.

Decision tool to decide whether further evaluation for SAH is indicated.

The Outpatient Bleeding Risk Index is used to help predict the risk of bleeding with anticoagulation.

Several different pain scales to use during patient visits.

Calculator with the standard screen for depression.

Calculator for prediction of clinical deterioration in pediatric inpatients.

Weight-based dosing for some of the more frequently prescribed medications for children.

Calculator for risk of postconcussion symptoms (such as headache, fatigue, inattentiveness, or forgetfulness) more than 28 days after the initial trauma.

A helpful tool to make an unbiased decision. It's also an example of using javascript math to generate a random number in a SOAPnote form.

Calculator for decision whether to x-ray the knee or not. May be used for children or adults.

Decision tool for pneumococcal vaccination need determination.

Calculator with prognostic decision rule for mortality rate when diagnosed with pneumonia.

Diagnostic calculator for polymyalgia rheumatica (PMR)

Diagnostic calculator for polymyalgia rheumatica (PMR)

This is a calculator to screen for Post Traumatic Stress Disorder (PTSD)

Calculator for predicted peak flow.

Calculator for predicting risk of delirium in hospitalized adults.

A pregnancy wheel to calculate gestational age from the known due date (EDC). Also gives conception date, 2nd and 3rd trimester start dates, and term date.

The pregnancy wheel. Gives current gestational age and due date. Also gives conception date, 2nd and 3rd trimester start dates, and term date.

Rule to determine the risk of complication following surgery.

From Allan Lichtman​'s Keys to the White House - This has successfully predicted the winner of every US Presidential election since 1984.

A calculator to help determine severity of lower urinary tract symptoms. The American Urological Association Symptom Score.

This tool can be used to rule out pulmonary embolism if the pre-test probability of PE is low. A Wells PE Score of 1 or 0 is one way to meet this requirement (1.3% probability).

This decision tool calculates the 30-day mortality for patients diagnosed with Pulmonary Embolism.

Mortality and rebleeding rate calculator for gastrointestinal bleeding.

This calculator is intended to help diagnose Irritable Bowel Syndrome (IBS), a functional gastrointestinal disorder.

Risk of serious outcome or death at one month.

Rule to determine the prevalence and characteristics of acute myocardial infarction (AMI) patients who present to emergency departments with normal or nonspecific electrocardiograms (ECGs).

This is better than the Mini Mental Status Exam (MMSE)

Calculator to identify adults at risk for suicide.

Questions to ask children at clinic visits.

A comprehensive decision tool to build a hypertension workup plan for a patient.

Calculator for assessment of panic disorder.

Calculator to assess alcohol withdrawal symptoms.

For a third party (friend or relative) to evaluate an elderly person.

8 item decision tool for calculating complication risk

Calculator to determine whether pain is from spondyloarthropathy or other causes.

Calculator to assess risk for obstructive sleep apnea.

Calculator with classic score for pharyngitis testing and treatment.

Calculator determines pretest probability for diagnosis of coronary artery disease.

Decision tool for Saturday Night Live - it's just a sample calculator.

How to proceed once you've detected a low TSH level.

Calculator with recommendations for transitioning between birth control methods.

Syncope decision tool. There's a good table with clinical features and suggested causes of syncope in the reference (see footnotes).*30-day morbidity/mortality includes death, myocardial infarction, arrhythmia, pulmonary embolism, stroke, subarachnoid hemorrhage, significant hemorrhage, anemia requiring transfusion, procedural intervention to treat a related cause of syncope, or any condition that is likely to cause the patient to return to the emergency department.

Clinical decision tool for Systemic Lupus Erythematosus. This does actually suggest or refute a diagnosis of SLE if you get through all 3 steps and hit “Submit”.

Calculator to determine your target and maximum heart rate for exercise.

Calculator with recommended arthritis laboratory workup through differential diagnosis.

Higher scores correlate with higher levels of caregiver burden.

How to proceed when thyroiditis is suspected.

Calculator for 2 week subsequent risk of death, Myocardial Infarction or need for revascularization following chest pain evaluation.

United Kingdom Prospective Diabetes Study - Probability of Coronary Heart Disease in the next 10 years.

A 9 item calculator to identify patients at risk for venous thromboembolism in the 90-day period following non-emergent inpatient surgery.

The Obesity Management Checklist is intended to be used in serial fashion to support and encourage weight loss in obese adults and children.

Calculator to determine risk for Deep Vein Thrombosis (DVT).

Risk assessment calculator for pulmonary embolism.

Interesting and relevant classic WHO criteria for worthwhile screening programs. Many of these are modifiable factors.

For febrile children ages 3-36 months. Used to predict serious bacterial infection (SBI).

Self assessment calculator for anxiety.