Pharmaceutics Final: lec 11 Flashcards
If a living cell is placed in hypotonic solution
water will enter cell
If a living cell is placed in hypertonic solution
water will leave cell
Normal blood serum osmolarity values range from?
275-300
dissociation factor=
total # of particles of solute in solution after dissociation / # of particles before dissociation
T/F Body fluids, including blood and tears, have the same osmotic pressure as that of a 0.9% w/v NaCl
true
what is the lumen of the needle?
hollow part of needle
what is the bevel of the needle?
slanted end of needle
what is the shaft of the needle?
needle’s outer portion
T/F The gauge of a needle, used to designate the size of the lumen, ranges from 33 to 7
true
T/F the butterfly needle is often used for long-term therapy
false, short-term
what is the max injection volume by IV for adults?
3L/day
define IV bolus
drug injected directly into vein within a short period
define intermittent infusion
diluted drug infused over 15-60 min every 6 hours
define continuous infusion
drug added to large volume of parental fluid and slowly administered
how long are IM needles?
gauge?
volume into deltoid/thigh?
volume into butt?
1/2 in to 1 1/2 in
19-23 gauge
2 mL
5 mL