Changelog.

Removes a rogue else.

code/game/objects/items/weapons/defib.dm

@@ -314,11 +314,7 @@
 		return FALSE
 
 	var/obj/item/organ/internal/heart/heart = H.get_organ(BP_HEART)
-	if(!heart)
-		return TRUE
-
-	var/blood_volume = round((H.vessel.get_reagent_amount("blood")/heart.species.blood_volume)*100)
-	if(blood_volume < BLOOD_VOLUME_SURVIVE)
+	if(!heart || H.get_effective_blood_volume() < BLOOD_VOLUME_SURVIVE)
 		return TRUE
 
 	return FALSE

code/modules/organs/internal/brain.dm

@@ -158,5 +158,5 @@
 			if(prob(15))
 				owner.Paralyse(3,5)
 				to_chat(owner, "<span class='warning'>You feel extremely [pick("dizzy","woosey","faint")]</span>")
-		else if(blood_volume < BLOOD_VOLUME_SURVIVE)
+		if(-(INFINITY) to BLOOD_VOLUME_SURVIVE)
 			owner.setOxyLoss(max(owner.getOxyLoss(), owner.maxHealth+10))

code/modules/organs/internal/heart.dm

@@ -113,14 +113,14 @@ var/const/BLOOD_VOLUME_SURVIVE = 40
 
 		switch(pulse)
 			if(PULSE_SLOW)
-				blood_max *= 0.75
+				blood_max *= 0.8
 			if(PULSE_FAST)
 				blood_max *= 1.25
 			if(PULSE_2FAST)
 				blood_max *= 1.5
 
 		if(CE_STABLE in owner.chem_effects) // inaprovaline
-			blood_max *= 0.5
+			blood_max *= 0.8
 
 		if(world.time >= next_blood_squirt && istype(owner.loc, /turf) && do_spray.len)
 			owner.visible_message("<span class='danger'>Blood squirts from [pick(do_spray)]!</span>")

html/changelogs/zuhayr-limbstuff.yml

@@ -0,0 +1,8 @@
+author: Zuhayr
+delete-after: True
+changes: 
+  - tweak: "Bleed-out rate now depends on pulse rate and size of bleeding limb."
+  - tweak: "This means that potassium chlorophoride, which stops the heart, and inaprovaline, which now slows the heart, are both suitable for emergency treatment of bleeding."
+  - rscadd: "Cautery surgery with no preceeding steps will now cauterize a cut artery in a stump."
+  - tweak: "Arterial bleeding and stumps are now more informative about where the bleed is."
+  - tweak: "Arterial sprays can now splatter/blind people and use the correct icons."