How can arterial blood pressure be measured in rabbits?

The measurement of arterial blood pressure in rabbits can be effectively done using either direct arterial catheterization or indirect methods such as oscillometric or Doppler techniques. Direct measurement through an arterial catheter involves inserting a catheter into a major artery, allowing for continuous and accurate monitoring of blood pressure. This method provides real-time data and is highly reliable, especially in clinical or surgical settings where precise measurements are essential.

Indirect methods, like oscillometric devices or Doppler ultrasound, are also suitable for measuring blood pressure in rabbits. These techniques are non-invasive and provide a good estimate of blood pressure without the need for invasive procedures. Oscillometric devices measure changes in pressure within a cuff placed around a limb, while Doppler techniques utilize ultrasound to detect the flow of blood and calculate pressure based on the frequency shift.

The other methods listed, such as using a digital thermometer, standard blood pressure cuff, or manual sphygmomanometer, are not appropriate for rabbits. A digital thermometer is used for measuring temperature, while standard cuffs or manual sphygmomanometers may not be suitable for the size and physiology of rabbits, as they require specific techniques and equipment adapted for smaller animals to ensure accurate readings.