1) 15-30% blood loss, mild tachycardia
2) Moderate tachycardia and tachypnea, hypotensive, anxious/confused
3) 15% blood loss, normal vital signs, anxious
4) Tachycardic, hypotensive, confused/lethargic
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a) Class II
b) Class III
c) Class I
d) Class IV
In the meantime --
"The wound that bleedeth inward is the most dangerous."
--John Lyly 1554-1606