Page 1080 - The Veterinary Care of the Horse

AMYLASE

Amylase is raised with pancreatitis, but this is rarely seen in horses.
VetBooks.ir ELECTROLYTES AND MINERALS

In order for the body to function properly, electrolytes such as calcium, phosphorus,
magnesium, sodium, chloride and potassium must be present in the correct quantities and
ratios. Imbalances may be seen in horses with diarrhoea, exhaustion from overexertion or

suffering from exertional rhabdomyolysis.

FRACTIONAL EXCRETION
Tests involve taking urine and blood samples at the same time or within two hours of each

other. Additional information about the electrolyte status of the horse is obtained from these
tests which may be helpful in identifying the need for dietary supplementation.

MAMMARY SECRETIONS

The levels of protein, calcium, magnesium, sodium and potassium in the mammary
secretions of a pregnant mare provide a guide to the maturity of the foal and how close to

foaling the mare is. This can be useful if for any reason induction of labour or caesarean
section is being considered.

BLOOD GASES

Blood gases are measured in cases of respiratory abnormality. They are only used in equine
hospitals with on-site laboratories as they have to be analysed soon after collection.

Many blood tests are not specific so they are used as an aid to diagnosis in conjunction with

the clinical findings from the examination of the horse.

RESTRAINT OF THE HORSE

Most horses tolerate a wide variety of treatments when held in a headcollar by a quiet,

competent handler. However, in situations where a horse is frightened or in pain, additional
restraint may be necessary to ensure:

• the optimum treatment

• the safety of the horse and everyone present.