Errors related to different techniques of intraperitoneal injection in mice

Area of Science:

• Veterinary medicine
• Animal research methodology
• Surgical techniques

Background:

• Accurate administration of substances via intraperitoneal injection is crucial in mouse models.
• Suboptimal injection techniques can lead to inaccurate experimental results and animal distress.

Purpose of the Study:

• To evaluate the accuracy of intraperitoneal injections in mice using a one-person versus a two-person procedure.
• To determine if a modified injection technique can improve precision and reduce errors.

Main Methods:

• A comparative analysis of injection accuracy was performed.
• Two distinct procedures were assessed: a standard one-person injection technique and a modified two-person injection technique.
• Error rates in injection placement were quantified for both methods.

Main Results:

• The one-person injection procedure resulted in a 12% error rate in injection placement.
• The two-person injection procedure demonstrated a significant reduction in errors, with an incidence of only 1.2%.

Conclusions:

• The two-person procedure for mouse intraperitoneal injections substantially improves accuracy compared to the one-person method.
• Adopting a two-person technique is recommended to minimize injection errors and enhance the reliability of research involving mouse models.