Customer reported potential false negative urine hcg results with consult diagnostics hcg combo cassette vs.Ultrasound.Customer reported that a (b)(6) year old female pt's urine sample was run three times with consult diagnostics hcg combo cassette giving negative results each time.The pt's last menstrual period was on (b)(6) 2013.No quantitative testing was performed but diagnosis that pt was 9 weeks pregnant was based on ultrasound.No treatment was provided based on the negative results.The customer noted that external controls were run without issue; normal/expected results obtained.
|