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Clinical Calculators and Scores for UK Primary Care

Free, fast tools for GPs, pharmacists, nurses and trainees. Each one follows current NICE guidance and creates a note you can paste into EMIS or SystmOne.

Cardiovascular

Blood Pressure Stages Calculator (NICE NG136)Classify clinic, ABPM or home readingsCHA₂DS₂-VASc Score CalculatorStroke risk in atrial fibrillationDutch Lipid Clinic Network Score for Familial HypercholesterolaemiaFamilial hypercholesterolaemiaHome Blood Pressure Average Calculator (HBPM)7-day HBPM averageNon-HDL Cholesterol Target Tracker (NICE NG238)Non-HDL reduction on statinsORBIT Score CalculatorBleeding risk on anticoagulationWells Score for DVT CalculatorTwo-level DVT probabilityWells Score for PE CalculatorTwo-level PE probability

Infection & respiratory

CRB-65 Score for Community-Acquired PneumoniaPneumonia severity scoreFeverPAIN Score CalculatorSore throat antibiotic decisionMRC Dyspnoea Scale (mMRC) CalculatorBreathlessness gradePeak Flow Calculator: Percentage of Best and VariabilityPercentage of best and variability

Renal & urology

CKD Staging CalculatoreGFR and ACR with KDIGO riskCreatinine Clearance Calculator (Cockcroft–Gault)Cockcroft–Gault for drug dosingIPSS: International Prostate Symptom ScoreProstate symptom score

Results

Adjusted (Corrected) Calcium CalculatorAlbumin-corrected calciumBlood Test Results Interpreter for Primary CareFBC, LFT, TFT, U&E and moreeGFR Calculator (CKD-EPI 2009)From creatinine, age and sexFIB-4 Calculator for Liver FibrosisLiver fibrosis risk

Men's health

Free Testosterone Calculator (Vermeulen)Vermeulen calculation, BSSM thresholdsPSA Levels by Age: NICE NG12 Result CheckerNICE NG12 age thresholdsSHIM (IIEF-5) Erectile Dysfunction ScoreErectile dysfunction severity

Mental health & neurodevelopment

AQ-10 Adult Autism Screening QuestionnaireAdult autism screening questionnaireEPDS: Edinburgh Postnatal Depression ScaleEdinburgh Postnatal Depression ScaleGAD-7 Anxiety Questionnaire and ScoringAnxiety severity scoreKessler K10 Psychological Distress ScalePsychological distressMood Disorder Questionnaire (MDQ) for Bipolar DisorderBipolar spectrum screenPC-PTSD-5: Primary Care PTSD ScreenPost-traumatic stress screenPHQ-15 Somatic Symptom Severity ScaleSomatic symptom severityPHQ-9 Depression Questionnaire and ScoringDepression severity scoreSCOFF Questionnaire for Eating DisordersEating disorder screenWhooley Questions: Two-Question Depression ScreenTwo-question depression screen

Older people & cognition

6CIT: Six-Item Cognitive Impairment TestSix-item cognitive impairment testAnticholinergic Burden (ACB) Score CalculatorACB score for medication reviewClinical Frailty Scale (Rockwood CFS)Rockwood frailty level 1 to 9GPCOG: GP Assessment of CognitionGP assessment of cognition

Weight & lifestyle

AUDIT Alcohol Questionnaire (Full 10 Questions)All 10 alcohol questionsAUDIT-C Alcohol Screening QuestionnaireAlcohol use screenBMI and Waist-to-Height Ratio CalculatorWith NICE ethnicity thresholdsDAST-10 Drug Abuse Screening TestDrug use screenGLP-1 Weight Loss Tracker: Wegovy, Mounjaro and SaxendaWeight loss against NICE rules

Prescribing

Opioid Conversion Calculator: Oral Morphine EquivalentOral morphine equivalent per dayParacetamol Dose for Low-Weight AdultsWeight-adjusted adult dosingPrescription Quantity CalculatorTotal units and packs for a courseSteroid Conversion CalculatorPrednisolone, hydrocortisone and more

Women's health

HRT Dose Equivalence: Oral, Patch and Gel EstradiolOral, patch and gel estradiolMissed Pill Guide: Combined and Progestogen-Only PillsCOC and POP missed pill rulesPregnancy Due Date Calculator for CliniciansGestation, EDD and key dates

Paediatrics

Paracetamol and Ibuprofen Doses for Children by WeightWeight-based doses and volumesDehydration Assessment in Children Under 5Gastroenteritis assessmentNICE Traffic Light System for Fever in Under 5sUnder 5s, NICE NG143

Musculoskeletal

DAS28 Calculator for Rheumatoid ArthritisRheumatoid arthritis disease activityOttawa Ankle Rules (with Foot and Knee Rules)Ankle, foot and knee X-ray rules

Unit conversions

Medical Unit Converter: mmol/L, mg/dL, HbA1c and MoreWeight, lipids, glucose, HbA1c and more

Letters & certificates

Fit Note Helper: Dates, Adjustments and WordingDates and wording for a Med3

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