- Resources and references
- Cardiac puncture (with recovery) sampling in other animals
- All blood sampling techniques in the hamster
Collection of blood from the heart is the most accessible route in the hamster and is suitable for all strains. However, given the invasive nature of the procedure and that it requires general anaesthesia, sampling from the saphenous vein should always be considered first.
Where cardiac puncture with recovery is used it should always be carried out under general anaesthesia and using an aseptic technique. Blood is collected from the left side of the thorax and care should be taken to avoid damaging the lung and heart. A sample of 0.5 ml can be collected. Only one sample should be taken with recovery. A second sample should only be taken under terminal anaesthesia.
Blind passage of the needle toward the heart has the potential to cause laceration of large blood vessels or laceration of the heart resulting in pulmonary haemorrhage, haemothorax or cardiac tamponade. Care should be taken to ensure that the needle is inserted only as far as it needs to go into the chest cavity. Pericardial effusion (accumulation of blood within the pericardium) may occur during or after blood sampling and approximately 1 in 500 animals die as a result of the procedure.
|Number of samples||Only one sample with recovery; a second sample can be taken under terminal anaesthesia|
|Sample volume||0.5 ml|
|Equipment||An insulin syringe (0.5-2 ml) with an integral needle|
|Staff resource||One person is required to take the blood sample|
|Adverse effects||See above|
- A good practice guide to the administration of substances and removal of blood, including routes and volumes.
- McClure DE (1999), Clinical pathology and sample collection in the laboratory rodent. The Veterinary Clinics of North America: Exotic Animal Practice. 2(3), pp 565-590, vi
- Ness RD (1999), Clinical pathology and sample collection of exotic small animals. The Veterinary Clinics of North America: Exotic Animal Practice. 2(3), pp 591-620
- Lucas RL, Lentz KD, Hale AS (2004), Collection and preparation of blood products. Clinical Techniques in Small Animal Practice. 19(2), pp 55-62
- Removal of blood from laboratory animals and birds.
This technique (WITH recovery) is only appropriate for use in the hamster. Cardiac puncture WITHOUT recovery (i.e a terminal technique under anaesthesia) is an appropriate technique for use in the mouse, rat, hamster, guinea pig, rabbit and ferret.