20/02/2026
âģī¸Importance of taking occupational history:
āĻā§āύ⧠patient āϝāĻāύ fever āĻāĻŦāĻ jaundice āύāĻŋāϝāĻŧā§ āĻāϏā§, āϤāĻāύ āĻāĻŽāĻžāĻĻā§āϰ clinical practice-āĻ āĻĒā§āϰāĻĨāĻŽ āϝ⧠āĻĻā§āĻāĻāĻŋ āĻĒā§āϰāϧāĻžāύ differential diagnosis āĻŽāĻžāĻĨāĻžāϝāĻŧ āĻāϏ⧠āϤāĻž āĻšāϞ⧠Viral Hepatitis āĻāĻŦāĻ LeptospirosisāĨ¤
āĻāĻ āĻĻā§āĻ āϰā§āĻā§āϰ āĻāĻĒāϏāϰā§āĻ āĻ
āύā§āĻ āϏāĻŽāϝāĻŧ āĻāĻā§ āĻ
āĻĒāϰā§āϰ āϏāĻžāĻĨā§ āĻŽāĻŋāϞ āĻĨāĻžāĻāϤ⧠āĻĒāĻžāϰā§āĨ¤ āϤāĻžāĻ āϏāĻ āĻŋāĻ diagnosis āĻāϰāĻžāϰ āĻāύā§āϝ history āύā§āĻāϝāĻŧāĻž āĻ
āϤā§āϝāύā§āϤ āĻā§āϰā§āϤā§āĻŦāĻĒā§āϰā§āĻŖāĨ¤ āĻāϰ āĻŽāϧā§āϝ⧠āϏāĻŦāĻā§āϝāĻŧā§ āĻā§āϰā§āϤā§āĻŦāĻĒā§āϰā§āĻŖ āĻāĻāĻāĻŋ āĻĒā§āϰāĻļā§āύ āĻšāϞā§âpatient-āĻāϰ occupation āĻā§āĨ¤
āϝāĻĻāĻŋ patient farmer āĻšāϝāĻŧ, āĻ
āĻĨāĻŦāĻž āĻĻā§āϰā§āĻ āϏāĻŽāϝāĻŧ āĻĒāĻžāύāĻŋāϤ⧠āĻāĻžāĻ āĻāϰā§, drain āĻŦāĻž sewer āĻĒāϰāĻŋāώā§āĻāĻžāϰ āĻāϰā§, veterinary āĻāĻžāĻ āĻāϰ⧠āĻŦāĻž animal-āĻāϰ āϏāĻžāĻĨā§ āύāĻŋāϝāĻŧāĻŽāĻŋāϤ āϏāĻāϏā§āĻĒāϰā§āĻļā§ āĻĨāĻžāĻā§, āϤāĻžāĻšāϞ⧠Leptospirosis āĻšāĻāϝāĻŧāĻžāϰ āϏāĻŽā§āĻāĻžāĻŦāύāĻž āĻ
āύā§āĻ āĻŦā§āĻļāĻŋ āĻĨāĻžāĻā§āĨ¤ āĻāĻžāϰāĻŖ Leptospirosis āĻāĻāĻāĻŋ zoonotic infection āĻāĻŦāĻ āĻāϰ causative organism āĻšāϞ⧠Leptospira interrogansāĨ¤ āĻāĻ organism āϏāĻžāϧāĻžāϰāĻŖāϤ rat āĻŦāĻž āĻ
āύā§āϝāĻžāύā§āϝ āĻĒā§āϰāĻžāĻŖā§āϰ urine-āĻ āĻĨāĻžāĻā§āĨ¤ āϝāĻāύ āϏā§āĻ urine āĻĒāĻžāύāĻŋāϤ⧠āĻŦāĻž āĻāĻžāĻĻāĻžāϝāĻŧ āĻŽāĻŋāĻļā§ āϝāĻžāϝāĻŧ, āϤāĻāύ āĻĒāĻžāύāĻŋ contaminated āĻšāϝāĻŧā§ āϝāĻžāϝāĻŧāĨ¤ Farmer-āϰāĻž āϧāĻžāύāĻā§āώā§āϤ⧠āĻŦāĻž āĻĒāĻžāύāĻŋāĻāϰā§āϤāĻŋ āĻāĻŽāĻŋāϤ⧠āĻĻā§āϰā§āĻ āϏāĻŽāϝāĻŧ āĻāĻžāĻ āĻāϰā§āύ, āĻ
āύā§āĻ āϏāĻŽāϝāĻŧ āĻāĻžāϞāĻŋ āĻĒāĻžāϝāĻŧā§ āĻĨāĻžāĻā§āύ āĻāĻŦāĻ āĻā§āĻāĻāĻžāĻā§ skin abrasion āĻĨāĻžāĻā§āĨ¤ āĻāĻ contaminated water-āĻāϰ āĻĻā§āϰā§āĻ exposure-āĻāϰ āĻāĻžāϰāĻŖā§ organism āϏāĻšāĻā§āĻ āĻļāϰā§āϰ⧠āĻĒā§āϰāĻŦā§āĻļā§āϰ āϏā§āϝā§āĻ āĻĒāĻžāϝāĻŧāĨ¤ Drain worker āĻŦāĻž vet-āĻĻā§āϰ āĻā§āώā§āϤā§āϰā§āĻ āĻāĻāĻ āϧāϰāύā§āϰ exposure āĻĨāĻžāĻā§, āϤāĻžāĻ āϤāĻžāĻĻā§āϰ āĻŽāϧā§āϝā§āĻ infection-āĻāϰ risk āĻŦā§āĻļāĻŋāĨ¤
Organism āĻļāϰā§āϰ⧠āĻĒā§āϰāĻŦā§āĻļ āĻāϰ⧠āϏāĻžāϧāĻžāϰāĻŖāϤ skin abrasion āĻŦāĻž mucosa (eye, nose, mouth) āĻĻāĻŋāϝāĻŧā§āĨ¤ āĻ
āύā§āĻ āϏāĻŽāϝāĻŧ āĻĻā§āϰā§āĻ āϏāĻŽāϝāĻŧ āĻā§āĻāĻž skin āĻĨāĻžāĻāϞā§āĻ organism āĻĸā§āĻāϤ⧠āĻĒāĻžāϰā§āĨ¤ āĻļāϰā§āϰ⧠āĻĸā§āĻāĻžāϰ āĻĒāϰ āĻāĻāĻŋ bloodstream-āĻ āĻāĻĄāĻŧāĻŋāϝāĻŧā§ āĻĒāĻĄāĻŧā§, āϝāĻžāĻā§ leptospiremia āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤ Infection āϝāĻĻāĻŋ mild āĻĨāĻžāĻā§ āϤāĻžāĻšāϞ⧠āĻļā§āϧ⧠fever āĻāĻŦāĻ body ache āĻĨāĻžāĻāϤ⧠āĻĒāĻžāϰā§, āĻāĻŋāύā§āϤ⧠severe āĻšāϞ⧠organism āĻŦāĻŋāĻāĻŋāύā§āύ organ-āĻ āĻāĻŋāϝāĻŧā§ settle āĻšāϝāĻŧāĨ¤specially kidney and liver
Kidney-āϤ⧠āĻāĻāĻŋ āĻŦāĻŋāĻļā§āώ āĻāϰ⧠proximal convoluted tubule-āĻ āĻāĻŋāϝāĻŧā§ āĻŦāϏ⧠āĻāĻŦāĻ tubulointerstitial nephritis āϤā§āϰāĻŋ āĻāϰā§āĨ¤ āĻāϰ āĻĢāϞ⧠acute kidney injury āĻšāϤ⧠āĻĒāĻžāϰ⧠āĻāĻŦāĻ severe āĻā§āώā§āϤā§āϰ⧠kidney failure āĻĒāϰā§āϝāύā§āϤ āĻšāϤ⧠āĻĒāĻžāϰā§āĨ¤
āĻ
āύā§āϝāĻĻāĻŋāĻā§ liver-āĻ massive hepatocyte necrosis āϏāĻžāϧāĻžāϰāĻŖāϤ āĻšāϝāĻŧ āύāĻž, āϝā§āĻŽāύāĻāĻŋ Viral Hepatitis-āĻ āĻĻā§āĻāĻž āϝāĻžāϝāĻŧāĨ¤ āĻŦāϰāĻ āĻāĻāĻžāύ⧠hepatocellular dysfunction āĻāĻŦāĻ canalicular cholestasis āĻšāϝāĻŧāĨ¤ āĻ
āϰā§āĻĨāĻžā§ liver conjugated bilirubin āϤā§āϰāĻŋ āĻāϰāϤ⧠āĻĒāĻžāϰāϞā§āĻ bile āĻĻāĻŋāϝāĻŧā§ āĻ āĻŋāĻāĻŽāϤ⧠āĻŦā§āϰ āĻāϰāϤ⧠āĻĒāĻžāϰ⧠āύāĻžāĨ¤ āĻĢāϞ⧠conjugated bilirubin āϰāĻā§āϤ⧠āĻĢāĻŋāϰ⧠āĻāϏ⧠āĻāĻŦāĻ conjugated hyperbilirubinemia āϤā§āϰāĻŋ āĻšāϝāĻŧāĨ¤ āĻāĻ āĻāĻžāϰāĻŖā§ patient-āĻāϰ jaundice āĻšāϝāĻŧ āĻāĻŦāĻ urine āĻāĻžāĻĸāĻŧ āĻšāϝāĻŧā§ āϝāĻžāϝāĻŧāĨ¤
āϝāĻĻāĻŋ severe jaundice āĻāĻŦāĻ renal failure-āĻāϰ āϏāĻžāĻĨā§ lung āĻĨā§āĻā§ hemorrhage āĻšāϝāĻŧ, āϤāĻāύ āĻāĻ severe form-āĻā§ Weilâs disease āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤ āĻāĻāĻŋ Leptospirosis-āĻāϰ āĻāĻāĻāĻŋ āĻā§āϰā§āϤāϰ āϰā§āĻĒ āϝā§āĻāĻžāύ⧠jaundice, renal failure āĻāĻŦāĻ hemorrhage āĻāĻāϏāĻžāĻĨā§ āĻĻā§āĻāĻž āϝā§āϤ⧠āĻĒāĻžāϰā§āĨ¤
āĻ
āύā§āϝāĻĻāĻŋāĻā§ Viral Hepatitis-āĻ āϏāĻžāϧāĻžāϰāĻŖāϤ hepatocyte necrosis āĻŦā§āĻļāĻŋ āĻĨāĻžāĻā§ āĻāĻŦāĻ liver enzyme āĻŦāĻŋāĻļā§āώ āĻāϰ⧠ALT āĻ AST āĻ
āύā§āĻ āĻŦā§āĻļāĻŋ āĻŦā§āĻĄāĻŧā§ āϝāĻžāϝāĻŧāĨ¤ āϏā§āĻāĻžāύ⧠contaminated water exposure āĻŦāĻž occupational risk āϏāĻžāϧāĻžāϰāĻŖāϤ āĻĨāĻžāĻā§ āύāĻžāĨ¤
āĻāĻ āĻāĻžāϰāĻŖā§ fever āĻāĻŦāĻ jaundice āύāĻŋāϝāĻŧā§ āĻāϏāĻž patient-āĻāϰ āĻā§āώā§āϤā§āϰ⧠occupational history āύā§āĻāϝāĻŧāĻž āĻ
āϤā§āϝāύā§āϤ āĻā§āϰā§āϤā§āĻŦāĻĒā§āϰā§āĻŖāĨ¤