VCP 411: Medicine Section

Packed cell volume

DIFFERENT INSTRUMENTS USED FOR AUSCULTATION

• A column taller than normal – haemoconcentration.

 Buffy coat: 1 mm = 10,000 and each additional mm = 20,000.

• Buffy coat of less than 0.5 mm would suggest leucopenia.
• Buffy coat above 1.5 mm would suggest leukocytosis.

 Plasma:

• Straw yellow - normal
• Deep yellow - lcterus
• Hemolytic anemia - red
• Turbid - lipemia and diabetes
• An anemic animal with severe hemoconcentration may have a PCV within the normal range. Hence while interpreting the PCV the water balance should be taken into consideration.