TABLE. Demographic information, naloxone administration, toxicology results, and reported drug used for 20 persons with confirmed (n = 8) or probable (n = 12) opioid overdose — Cabell County, West Virginia, August 14–16, 2016.

Patient	Age group (yrs)	Sex	Naloxone dose (administration route)	No. of naloxone doses	Total naloxone dose	Reported drug used	ED toxicology (public health investigation)	Opioid confirmation (public safety investigation)
A*	18–25	F	2 mg (IN)	1	2 mg	Heroin, crack	Cocaine	NP
B	18–25	F	0.4 mg (IV)	2	0.8 mg	NR	NP	NP
C*	18–25	F	NA	0	NA	NR	Opioid, benzodiazepine	NP
D	26–35	M	2 mg (IN)	1	2 mg	Heroin, marijuana	NP	NP
E*	26–35	F	0.4 mg (IM)	1	0.4 mg	Heroin	Opioid, cannabinoid	Carfentanil, furanylfentanyl
F*	26–35	F	2 mg (IN), 2 mg (IV)	2	4 mg	Heroin	Opioid, cocaine, cannabinoid	Fentanyl†
G	26–35	F	NA	0	NA	Heroin	NP	NP
H	26–35	M	2 mg (IV)	1	2 mg	NR	NP	NP
I*	26–35	F	NA	0	NA	Heroin	Opioid, cocaine, benzodiazepine	NP
J*	26–35	F	NA	0	NA	Heroin	Opioid, cocaine, cannabinoid	Carfentanil, fentanyl, furanylfentanyl
K	26–35	M	0.4 mg (IV)	1	0.4 mg	Heroin	NP	NP
L	26–35	M	0.4 mg (IV), 2 mg (IV)	2	2.4 mg	Heroin	NP	NP
M	26–35	M	0.4 mg (IV)	3	1.2 mg	NR	NP	NP
N	36–45	M	0.4 mg (IM)	1	0.4 mg	Heroin	NP	NP
O	36–45	F	2 mg (IN)	1	2 mg	Heroin	NP	NP
P	36–45	M	NR	NR	NR	NR	NP	NP
Q	46–60	M	2 mg (IV)	1	2 mg	NR	NP	NP
R*	46–60	M	0.4 mg (IV)	5	2 mg	Heroin	Cocaine	NP
S*	46–60	M	0.4 mg (IV)	5	2 mg	Heroin	Opioid	Carfentanil, fentanyl, furanylfentanyl
T	46–60	M	2 mg (IN)	1	2 mg	Heroin	NP	NP

Abbreviations: ED = emergency department; F = female; IM = intramuscular; IN = intranasal; IV = intravenous; M = male; NA = not applicable; NP = not performed; NR = not recorded.

* Confirmed case.

^† Inadequate specimen volume for fentanyl analog testing.