Table 4.

Mean laboratory results in occupational snake bites

	Rattlesnakes (range)	Copperheads (range)	Non-natives (range)
Platelet nadir (K/mm3)	216 (51–310) n = 20	168 (104–214) n = 3	177 (169–184) n = 2
Fibrinogen nadir (mg/dL)	272 (153–415) n = 20	251 (227–274) n = 2	97 (<30–164)a n = 2
Prothrombin Time peak (sec)	21 (11- > 120)b n = 19	12 (11–12) n = 3	20 (16–24) n = 2

^aFor fibrinogen < 30, a value of 30 was used to calculate the mean

^bFor prothrombin time > 120, a value of 120 was used to calculate the mean