{"success":true,"version":"v1","request":{"tool":"list_calculators","category":"medical"},"result":{"entity_type":"calculator_list","status":"completed","count":26,"calculators":[{"calculator_id":"egfr","entity_type":"calculator","name":"eGFR Calculator","category":"medical","tool_name":"calculate_egfr","description":"Estimates glomerular filtration rate from serum creatinine, age and sex with the CKD-EPI 2021 race-free creatinine equation, and assigns the KDIGO GFR category (G1–G5).","use_when":"You have an adult's serum creatinine (mg/dL or µmol/L), age and sex and need an eGFR in mL/min/1.73 m² or its CKD stage.","do_not_use_when":"The person is under 18 (paediatric equations differ), creatinine is not in steady state (acute kidney injury), or you need drug-dosing clearance in mL/min (use 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defined.","required_inputs":["years_smoked"],"optional_inputs":["cigarettes_per_day","packs_per_day","cigarettes_per_pack"],"urls":{"html":"https://tttkmbb.com/medical/pack-years","markdown":"https://tttkmbb.com/medical/pack-years.md","schema":"https://tttkmbb.com/api/v1/calculators/pack-years","api":"https://tttkmbb.com/api/v1/calculate/pack-years"}},{"calculator_id":"iv-drip-rate","entity_type":"calculator","name":"IV Drip Rate Calculator","category":"medical","tool_name":"calculate_iv_drip_rate","description":"Converts an infusion volume and duration into a gravity drip rate in drops per minute for a given tubing drop factor, and the equivalent pump rate in mL per hour.","use_when":"You need to set a gravity infusion (macrodrip 10, 15 or 20 gtt/mL, microdrip 60 gtt/mL) or an infusion pump for a given volume over a given time.","do_not_use_when":"The medication needs a weight-based dose first (use dose-by-weight) or the infusion is controlled by a syringe driver in mL/h with a 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For radioactive or chemical decay use half-life.","required_inputs":["half_life_hours"],"optional_inputs":["dose_mg","hours_elapsed","dosing_interval_hours","doses_taken"],"urls":{"html":"https://tttkmbb.com/medical/drug-half-life","markdown":"https://tttkmbb.com/medical/drug-half-life.md","schema":"https://tttkmbb.com/api/v1/calculators/drug-half-life","api":"https://tttkmbb.com/api/v1/calculate/drug-half-life"}},{"calculator_id":"apgar-score","entity_type":"calculator","name":"Apgar Score Calculator","category":"medical","tool_name":"calculate_apgar_score","description":"Sums the five Apgar components (appearance, pulse, grimace, activity, respiration), each scored 0–2, into the 0–10 newborn score and reports the AAP/ACOG interpretation band (7–10 reassuring, 4–6 moderately abnormal, 0–3 low).","use_when":"You have the five observations of a newborn at 1, 5 or 10 minutes after birth and need the total Apgar score and its band.","do_not_use_when":"You need to predict an individual infant's outcome or decide on resuscitation (the score does not direct resuscitation, which starts before the 1-minute score); results are informational and not medical advice.","required_inputs":["appearance","pulse","grimace","activity","respiration"],"optional_inputs":[],"urls":{"html":"https://tttkmbb.com/medical/apgar-score","markdown":"https://tttkmbb.com/medical/apgar-score.md","schema":"https://tttkmbb.com/api/v1/calculators/apgar-score","api":"https://tttkmbb.com/api/v1/calculate/apgar-score"}},{"calculator_id":"glasgow-coma-scale","entity_type":"calculator","name":"Glasgow Coma Scale Calculator","category":"medical","tool_name":"calculate_glasgow_coma_scale","description":"Sums the Glasgow Coma Scale eye (1–4), verbal (1–5) and motor (1–6) responses into the 3–15 total, writes it in E/V/M notation and assigns the conventional head-injury severity band (13–15 mild, 9–12 moderate, 3–8 severe).","use_when":"You have the three observed best responses of a patient and need the GCS total, its E V M breakdown or the severity band used in trauma and neurosurgical communication.","do_not_use_when":"A component cannot be tested (intubation, swollen eyes, sedation): report the testable components individually with NT rather than a total; infants need a paediatric scale. 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