instruction: how many patients whose diagnoses short title is elev transaminase/ldh and lab test fluid is other body fluid?
response: SELECT COUNT(DISTINCT demographic.subject_id) FROM demographic INNER JOIN diagnoses ON demographic.hadm_id = diagnoses.hadm_id INNER JOIN lab ON demographic.hadm_id = lab.hadm_id WHERE diagnoses.short_title = "Elev transaminase/ldh" AND lab.fluid = "Other Body Fluid"