Body fluids presumptive tests

HideShow resource information
View mindmap
  • Body Fluids - Presumptive Tests
    • Blood
      • 8% body weight
        • erthrocytes
          • red blood cells
        • leucocytes
          • white blood cells
        • thrombocytes
          • platelets
      • presumptive testing
      • confirmatory tests
        • leucocrystal violet
        • amido black
        • one step ABAcard hematrace
    • Semen
      • visual examination
        • woods lamp
        • blue crime light
      • presumptive test
        • acid-phosphatase
          • high amount of acid phosphatase present in semen
            • colour change reaction
              • immediate colour change indicates semen
              • 2 min colour change indicates vaginal fluid
              • purple
          • must be done in fume cupboard
      • confirmatory test
        • PSA/P30
          • Prostate Specific Antigen (p30)
            • positive result when test and control are highlighted due to antigens binding
          • limitations
            • only used for semen
            • positive result may be obtained with male urine
    • Saliva
      • phadebas
        • 1. place phadebas paper over the area to be tested with the blue reagent side in contact with the item.
          • 2. spray water onto the phadebas paper
            • 3. lay glass slide on top of the paper
              • 4. observe for a maximum of 40 minutes.
        • positive is identified as a distinct area of diffuse blue colour on the non-reagent side of the paper
      • salivary amylase
        • some people do not produce amylase or produce a small amount
    • Vaginal Fluid
      • visual examination
      • acid phosphatase
        • could give false positive
    • Urine
      • visual examination
      • smell
      • bayer multiple reagent strips for urinalysis
    • Faeces
      • undigested food, bacteria
      • visual examination
      • smell
      • urobilinogen - edelmans reagent
    • Vomit
      • no test
      • GC used to see poisons present
      • visual examination
      • smell

Comments

No comments have yet been made

Similar Other resources:

See all Other resources »See all FI resources »