Category:
Description:
Indications:
-
Acute
hypotensive states associated with spinal anesthesia, hemorrhage,
reactions to medications, surgical complications
-
Shock
associated with brain damage resulting from trauma or tumor
-
“Probably
effective” in hypotension due to cardiogenic shock or septicemia
Contraindications:
Precautions:
-
Pregnancy
category D
-
Prolonged
administration, heart disease, thyroid disease, hypertension, diabetes
-
Cirrhosis,
extravasation (phentolamine is antidote), history of malaria
-
Sulfite
sensitivity
Adverse
Reactions (Side Effects):
-
CNS:
apprehension, dizziness, headache, tremors
-
CV:
cardiac arrest, flushing, hypertension, hypotension (following
cessation), palpitation, sinus tachycardia, ventricular tachycardia,
other dysrhymias
-
GI:
nausea
-
SKIN:
extravasation (abscess, necrosis, sloughing), sweating
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Dosage:
Administered
subcutaneously, intramuscularly, intravenously
-
Adult:
-
SC/IM
2-10mg
-
IV
INF dilute 15-500mg in 500mg D5W or NS, administer at a rate
adjusted to maintain desired blood pressure
-
IV
0.5-5mg as a single dose in severe shock, follow with IV INF
-
Child:
-
SC/IM
0.1 mg/kg or 3 mg/meter square
-
IV
INF 0.4 mg/kg or 12 mg/meter square, diluted and administered at a
rate adjusted to maintain desired blood pressure
-
IV
0.01 mg/kg or 0.3 mg/meter square as a single dose in severe
shock, follow with IV INF
|
Source:
Operational Medicine 2001, Health
Care in Military Settings, NAVMED P-5139, May 1, 2001, Bureau
of Medicine and Surgery, Department of the Navy, 2300 E Street NW, Washington,
D.C., 20372-5300
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