Exam 2 - Lecture 3 Flashcards
what does it mean that IV is the “least forgiving”?
immediate distribution; there is no line of defense if something goes wrong
why does IV have rapid onset of action?
there is no absorption step
two methods of IV administration
bolus (push)
infusion
two sites of IV administration
peripheral vein
central vein
what is phlebitis?
inflammation from irritation of the tunica intima of the vein
what is thrombosis?
formation of a blood clot (thrombus) in the vein
true or false: phlebitis takes hours to subside
false
(may take days to months to subside)
true or false: phlebitis limits veins available for future therapy
true
3 sites of intramuscular administration and max volumes
deltoid muscle - 2 mL
thigh - 5 mL
gluteal muscle - 5 mL
subcutaneous administration usually does not exceed ___ mL
1.5 mL
which has slower absorption?
a. subQ
b. IM
a. subQ
(due to lower vascularization of the tissue)
infusion by subcutaneous route is called ?
hypodermoclysis
two intra-spinal routes of administration
intrathecal (into the subarachnoid space and CSF)
epidural (into space between the dura mater and the vertebral canal i.e. epidural space)
true or false: meds have higher potency with intrathecal administration compared to epidural
true
(no membranes/dura to cross; drug goes straight into CSF)
3 special care rules for intra-spinal
- cannot get away with not being isotonic
- cannot get away with not having physiological pH (7.4)
- cannot have preservatives
