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Table of Content - Volume 13 Issue 1 - January 2020




Study on the biochemistry laboratory performance in notifying critical alerts

 

J Sowndharya1*, S Aruna2, G Jeyachandran3

 

1Tutor, 2Assistant Professor, Department of Biochemistry, Government Karur Medical College and Hospital, Karur.

3Professor and HOD, Department of Biochemistry, PSG Institute of Medical Sciences and Research, Coimbatore.

Email: sowndaryaj27@gmail.com

 

Abstract               Background: Critical alert interval is the interval of examination (test) results that indicates an immediate risk to the patient of injury or death. Materials and Methods: All consecutive critical data of the month January 2019 are taken from the critical alert register from a tertiary care hospital/DC/BC/Reg/RR/09-Critical. From LIS, we generated the list of data satisfying the critical alert conditions in the same period January 2019. Results: The distribution had two peaks. The first peak is the tallest i.e.171 alerts are given within 25minutes. ABG and electrolyte samples processed immediately, contribute to this. This peak is superimposed on a normal distribution with a peak at 50 to 75 minutes interval and a long tail on the right side. Conclusion: Critical alert recording is missed in 26.3% of total alerts triggered. After correction, 50% of beta HCG is not recorded in the register. In 171 instances only we have given the alert within 25minutes.

Key Words: Critical alert, Parameters, Samples, Notification and authorized personnel.

 

 

INTRODUCTION

Critical alert interval is the interval of examination (test) results that indicates an immediate risk to the patient of injury or death. When examination results fall within established “alert” or “critical” intervals:

-A physician (or other authorized health professional) is notified immediately.

-Records are maintained of actions taken that document date, time, responsible laboratory staff member, person notified and examination results conveyed, and any difficulties encountered in notifications.

This study is about how effectively it is practiced in the laboratory

 

MATERIALS AND METHODS

Institutional human ethics committee approval was obtained. All consecutive critical data of the month January 2019 are taken from the critical alert register from a tertiary care hospital/DC/BC/Reg/RR/09-Critical. From LIS, we generated the list of data satisfying the critical alert conditions in the same period January 2019.

 

FOLLOW UP

  • We have a LIS based system to trigger, initiate action and record critical alert in 100% instances after this study.
  • We have been working to reduce the time taken for issuing alert and efficiency of tracking the authorized personnel to issue the alert.

 


 

 

 

 

Following are the parameters and their critical alert levels:

PARAMETERS

CRITICAL ALERT LEVELS

Serum amylase

>200 U/L

Serum ionized calcium

<0.75 or >1.625 mmol/L

Serum total calcium

<6.0 or>13.0 mg/dL

Plasma glucose

<70 or >450 mg/dL

Serum Osmolality

<240 or >320 mOsm/Kg

Blood pH (arterial)

<7.20 or >7.60

Blood pO2 (arterial)

<40 mm Hg

Serum/Plasma sodium

<120 or >160 mEq/L

Serum/ plasma potassium

<3.0 or >6.0 mEq/L

Serum β HCG

>1000 mIU/mL

Plasma Troponin T hs

>15 pg/mL

OBSERVATION AND RESULTS

1

Figure A: Alerts recorded and not recorded                                                         Figure B: Parameter wise alert

 

Missed alerts compared with total alerts

TOTAL ALERTS

NOT RECORDED

%NOT RECORDED

Bilirubin

3

3

100

Osmolality

4

3

75

Glucose Fasting

7

1

14

Calcium

12

9

75

Glucose Random

17

4

24

Ionised calcium

24

7

29

Amylase

26

2

8

Glucose PP

28

9

32

beta HCG

36

29

81

revised

13

6

50

Bicarbonate

41

15

37

Sodium

56

19

34

ABG

139

43

31

Troponin T

177

42

24

revised

164

29

18

Potassium

322

56

17

 

2

Time duration from alert triggered to alert notification

 


RESULTS

The distribution had two peaks. The first peak is the tallest i.e.171 alerts are given within 25minutes. ABG and electrolyte samples processed immediately, contribute to this. This peak is superimposed on a normal distribution with a peak at 50 to 75 minutes interval and a long tail on the right side.

 

CONCLUSION

Critical alert recording is missed in 26.3% of total alerts triggered.

After correction, 50% of beta HCG is not recorded in the register. In 171 instances only we have given the alert within 25minutes. In 442 instances it took 26mts to 4hrs. In 12 samples, it took more than 4 hours.

 

REFERENCES

  1. ISO/IEC 17000, ISO/IEC Guide 2 and ISO/IEC Guide 99
  2. ISO 15189- 2012
  3. Quality System Procedure Manual -DC/BC/QSP/SOP/RR/11

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