Blood counting machines aspirate a very small amount of the specimen through narrow tubing followed by an aperture and a laser flow cell. Laser eye sensors count the number of cells passing through the aperature, and can identify them; this is flow cytometry.
In computing, Extract, Transform and Load (ETL) refers to a process in database usage and especially in data warehousing that performs: Data extraction â extracts data from homogeneous or heterogeneous data sources.
The endotracheal tube introducer (ETI) is an effective and inexpensive adjunct to difficult airway management that is easy to use. We recommend that an ETI be readily available in every emergency department. This topic will review the types of ETIs, indications and contraindications for their use, proper technique for using the devices during emergency tracheal intubation, and evidence of their effectiveness.