1 1902 Willis Haviland Carrier invented the first air conditioner to control the temperature and humidity of a printing company, marking the first time effort taken to control the temperature of the surroundings. 2  This starts the history of air conditioning.
Following the introduction and widespread use of central venous catheters (CVCs) in adult patients, these devices are now frequently used also in the pediatric population. They have become an indispensable route for venous access, especially in pediatric intensive care units (PICUs).
Any individual who draws blood from or changes a dressing for a hemodialysis catheter. must have specialized training. b. VAT, where available, shall draw blood from a hemodialysis catheter on non-ICU/IMC. units. c. For hemodialysis catheters it is imperative to withdraw and discard 6 mL of blood prior. to use, (including medication infusion, or saline flush) so that patient does not get a bolus. of heparin. Dressing 1. For new tunneled central VADs, a nurse shall assess the site and dressing when the patient.