Comprehensive Fluid Therapy and Blood Transfusion in Veterinary Medicine

What percentage of water makes up the body in adult animals?

60%

What is the total body water (TBW) percentage in neonates?

Can be 80%

How does increased body fat affect total body water?

It decreases total body water (TBW).

What is the percentage of intracellular fluid (ICF) in total body water?

60% of TBW.

What percentage of total body weight does extracellular fluid (ECF) account for?

20% of total body weight.

What are the two main compartments of extracellular fluid?

Interstitial Fluid and Intravascular Fluid.

What is the most abundant cation in extracellular fluid?

Sodium (Na⁺).

What are the major cations found in intracellular fluid?

Potassium (K⁺) and Magnesium (Mg²⁺).

What is a common cause of abnormal fluid loss in animals?

Vomiting and Diarrhea (V/D).

What type of solution is quickly broken down into carbon dioxide and water?

Dextrose Solution.

Why should dextrose solutions not be used as shock fluids?

They do not stay in the blood vessels long enough to support circulation.

What are crystalloids used for?

To maintain normal hydration and replace fluid deficits.

What is the primary purpose of colloids in fluid therapy?

To expand the interstitial space in cases of plasma volume deficiency.

What is the formula for calculating free water deficit?

Free Water Deficit (L) = 0.6 × Body Weight (kg) × [(Patient Na⁺ / Normal Na⁺) - 1].

What is the normal sodium reference for dogs?

Approximately 145 mEq/L.

What should be the maximum rate of sodium decrease to avoid cerebral edema?

No more than 0.5-1 mEq/L/hr.

What is sodium bicarbonate used for in fluid therapy?

To correct metabolic acidosis.

What is potassium chloride (KCl) used to treat?

Hypokalemia.

What should not be added to fluids that contain calcium?

Calcium supplements, as it can cause precipitate formation.

What is a common cause of hypoglycemia that may require 50% dextrose?

Insulin overdose.

What are water-soluble vitamins often supplemented in large doses?

B-Complex and Vitamin C.

What is the maximum infusion rate for Potassium Chloride (KCl)?

Do NOT exceed 0.5 mEq/kg/hr

What are the visual signs of dehydration in animals?

Lacking skin elasticity, sunken eyes, dry nose, dry mouth and gums, excessive panting, vomiting, diarrhea, and very dark urine.

What is the normal urine production rate for animals?

1-2 mL/kg/hr

What are the clinical signs of 5% dehydration?

Slight decrease in skin turgor and tacky mucous membranes.

What indicates a 10-12% level of dehydration?

Marked decrease in skin turgor, dry mucous membranes, prolonged capillary refill time, sunken eyes, tachycardia, and weak pulses.

What is the main goal of emergency fluid therapy?

To increase intravascular volume.

What is the fluid therapy rate for dogs during surgery?

10 mL/kg/hr, or 5 mL/kg/hr if heart disease is present.

What are the contraindications for fluid therapy?

Pre-existing conditions such as pulmonary edema, brain injury, and congestive heart failure.

What is the purpose of blood transfusions in veterinary medicine?

To treat acute hemorrhage, chronic anemia, severe thrombocytopenia, coagulopathy, and hypoalbuminemia.

What is the blood collection volume for canine donors?

13 to 17 mL/kg body weight.

What is the importance of blood typing before transfusion?

To prevent agglutination reactions between donor's RBCs and recipient's plasma.

What should be monitored during a blood transfusion?

Physical examination, vital signs, PCV, blood lactate, and oxygen extraction.

What are acute hemolytic transfusion reactions?

Reactions caused by incompatible blood that can lead to hemoglobinemia, shock, and death.

What is the recommended administration rate for plasma in dogs?

10 to 15 mL/kg.

What are the signs of overhydration in animals?

Restlessness, dyspnea, increased lung sounds, tachycardia, and pitting edema.

What is the significance of monitoring urine output during fluid therapy?

To assess renal function and fluid balance.

What is the role of colloids in fluid therapy?

To help maintain serum oncotic pressure.

What is the typical shock dose for fluid therapy in cats?

50-55 mL/kg.

What is the first step in administering blood products?

Use an in-line filter and ensure blood temperature is ≤ body temperature.

What are the risks associated with blood transfusions?

Transmission of infectious diseases, bacterial contamination, citrate toxicity, and hypothermia.

What is the purpose of pretransfusion testing?

To ensure compatibility and prevent transfusion reactions.

What is the significance of assessing physical parameters during fluid therapy?

To determine the effectiveness of the therapy and make necessary adjustments.

What are the signs of delayed hemolytic transfusion reactions?

Fever and nonhemolytic immune reactions.

How can dehydration be estimated in animals?

By assessing clinical signs and measurable signs like low PCV and high TP.

What is the average maintenance fluid rate for animals?

40-60 mL/kg/day, averaging 50 mL/kg/day.

What is the importance of health screening for blood donors?

To prevent complications and ensure the efficacy of the blood product.