Langs intravenous hypertonic saline infusion creates a hypertonic expansion within the blood - an increase in salts in excess of water. This promotes increased water resorption in the kidneys and stimulates the thirst reflex to restore the fluid/salts balance in the blood. This product should be used only by registered veterinary surgeons. Click "Information" for more detail on Langs solution.
Get a horse to drink - before and after travel
Avoid dehydration during travel by getting a horse to drink before transport. On arrival after a trip, unfamiliar surroundings may be unsettling and drinking water is likely to have a different taste and make horses reluctant to drink.
Freshen-up horses that have been in work for a few months and not performing.
A Lang's intravenous hypertonic saline infusion creates a hypertonic expansion within the blood - an increase in salts in excess of water. This promotes increased water resorption in the kidneys and stimulates the thirst reflex to restore the fluid/salts balance in the blood.
The requirement to maintain plasma osmolality with a relatively narrow range prompts a horse to drink almost immediately after administration of a Lang's Solution and overcomes any reluctance to drink.
Where performance on the racetrack is well below their best but horses still appear in good health and skin elasticity is normal, several months in work may be enough to bring on adrenal exhaustion. A side effect of this is reduced adrenal output, which may cause a loss of salts in the urine in excess of fluids.
The depletion of body salts reduces cellular efficiency and produces sub-optimal athletic performance. At morning trackwork a horses' overall times may be excellent, but fractional times may reveal they are not going to the post strongly.
If training is carried out "on the bit" and horses are seldom pushed right out, the tendency to wilt under pressure often does not show up until they race. Such horses appear to be going three-quarter pace behind the leaders until they turn into the straight, but when the pressure is on they fade. It may be observed that such horses are not even blowing when they have completed the distance.
A further group of horses that fall into this category are the "hard pullers" which make it difficult to regulate the quality of work.
Administration of a Lang's Solution temporarily changes the blood picture of a hypotonic contraction to one of a hypertonic expansion - a gain of salts in excess of water.
The increased extra-cellular sodium from the Lang's results in a transfer of fluid from the intracellular to the extracellular compartments. The packed cell volume (PCV) is reduced due to the increased plasma volume by the temporary transfer of tissue fluids into the bloodstream. The red blood cell (RBC) count and haemoglobin level is also reduced, sometimes to an apparently anaemic level.
The effect of a Lang's is similar to the once common practice of "Bleeding" - a procedure that dramatically depleted blood volume and as a result, stimulated the recovery of body fluids to normal levels.
A return to normal blood volume and fluid levels can be assisted with the administration of a DOCA Injection (deoxycorticosterone acetate) which promotes increased resorption of sodium with consequent retention of extracellular water.
The combination of a Lang's Solution plus advice on restriction of fast work has often resulted in a spectacular return to form.
For horses that won't drink
Horses that become dehydrated because of prolonged exercise such as endurance events or due to especially humid, hot conditions may not drink despite a drop in body fluids because body water and body salts are lost together in sweat. As such, if plasma osmolality does not increase, the thirst reflex is not stimulated.
This state of "voluntary dehydration" may be overcome by administration of a Lang's Solution which will create the increased plasma osmolality to stimulate the thirst reflex and get a horse to drink.
Composition: Each 500ml pouch contains:
Sodium chloride 19 grams and Sodium citrate 19 grams, providing Na ions 14.1g and Chloride ions 11.2g
Actions: Alkaline hypertonic saline infusion stimulates the thirst reflex. In cases of hypotonic contraction due to loss of salt in excess of water, administration of 500ml Lang's Solution temporarily creates the condition of a hypertonic expansion. The increased extracellular sodium results in a transfer of fluid from the intracellular to the extracellular compartments and stimulates the thirst reflex in order to restore the fluid status and intracellular and extracellular osmotic pressures.
Packed in 500ml medical PVC pouch with 900mm draw-off tube and luer slip plug, complete with 14-gauge catheter.
Directions For Use: Administer entire contents of 500ml by intravenous infusion. This product should be used only by registered veterinary surgeons.
Warning: The saline solution is an irritant extra-vascularly due to its hypertonicity. Recommended procedure is to use the 14-gauge catheter provided in preference to a needle.
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