All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .
Ethyl Chloride as a Cryoanalgesic in Pediatrics for Venipuncture
Introduction : Ethyl chloride can be used as a cryoanalgesic , but with the availability of alternative and relatively safer topical analgesics , its use has decreased . However , it still has the advantage of being quicker to apply compared with other topical analgesics , making it ideal for use in the outpatient departments . We wanted to compare the effectiveness of ethyl chloride as an analgesic during venipuncture in children . Methods : Venipuncture was carried out using either no analgesia ( NO ) , ethyl chloride spray ( EC ) , or application of the topical anesthetic Ametop ( TA ) on children attending the phlebotomy outpatient service by experienced pediatric phlebotomists . A pain score was recorded using either the Faces scoring system or the Faces , Legs , Activity , Cry Consolability scoring system . Results : A total of 55 patients were included in the study , 18 from group EC , 18 from group TA , and 19 from group NO . Thirteen patients from both groups EC and TA and 17 from group NO scored 2 or less on the pain scores . Discussion : The use of ethyl chloride was as effective as topical anesthetics in preventing distress to children in venipuncture . However , in the appropriate situations , the use of NO could also be comfortable to the child if venipuncture was done by specialist pediatric phlebotomists
All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .