Wei et al reported predictors associated with intravenous access into a scalp vein of an infant. The authors are from Fujian University of Traditional Chinese Medicine, Sun Yat-sen University, and Fujian Medical University in China.
Patient selection: infant in the Emergency Department needing intravascular access
Parameters:
(1) dehydration
(2) obesity
(3) scalp vein visibility
(4) scalp vein palpability
(5) status of infant
Parameter
Finding
Odds Ratio
dehydration
absent or mild
1
moderate or severe
0.409
obesity
absent
1
present
0.454
vein visible
no
1
yes
3.342
vein palpable
no
1
yes
2.474
status of infant
calm
1.960
not calm
1
cumulative product of the odds ratio for IV access =
= PRODUCT(odds ratios for all 5 parameters)
Interpretation:
• minimum product: 0.186
• maximum product: 16.205
• The higher the product the more likely successful access.
• The lower the product below 1 the less likely success.
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