exam 4 Flashcards
ultra fast and short acting insulins
lispro
aspart
ultra long acting insulins
glargine (lantus-bedtime dose)
determir
slows gastric emptying and appetite modulator
amylin-pramlintide
incretin analog
decrease blood glucose
inhibits glucagon secretion
take with sulfonylurea/metformin
exenetide
best for obese type 2
dec liver gluconeogenesis
dec insulin resistance
doesn’t induce hypoglycermia
metformin
sulfonylureas
increase insulin secretion
affects atp sensitive k channels
which one is used for gestational diabetes?
glipizide and glyburide
glyburide is good for gestational
thiazolidinediones
-anti hyperglycemic
increase insulin sensitivity without inc release
pioglitazone
rossiglitazone
alpha-glucosidase inhibitor
-for mild to moderate fasting hyperglycemia
slows carb digestion and absorption which blunts blood glucose
acarbose
miglitol
ddp-iv inhibitors
prevent breakdown of incretin
inc insulin
sitagliptin
saxagliptin
opposite of sulfonylurea, opens atp sensitive k+
inhibits insulin release
also a antidiuretic
diazoxide
for severe hypoglycemia
inc liver glucose output
glucagon
for GH deficiency, sematopause, mitogenic-anti-apoptotic
subQ at night
somatotropin
long term tx for skeletal muscle, organ growth
mitogenic and anti apoptotic effects
subq with meal
mecasermin IGF-1
inhibit GH secretion
for acromegaly, carcinoid and pancreatic tumors
dec cAMP and Ca2+
octreotide-somatostatin, SRIF
gh analog of HGH
**normalizes IGF-1 and best drug for acromegaly
Pegvisomat
ergot da agonist for GH/PRL
normalizes IGF-1
bromocriptine
stimulated by inc ecf osmolality, dec bp, hemorrhage, RA2 system
treat diabetes insipidus (reduced water permability and polyuria)
Vasopressin-ADH
which moa of vasopressin is this?
phospholipase c-> IP3 ca2+ ->contraction of vascular and gi smooth muscle
V1a
which moa of vasopressin is this?
adenylate cyclase -> cAMP-> aquaporin insertion into luminal membrane of collecting ducts
V2
synthetic analog of adh, longer duration, more potent v2
desmopressin
uterine contraction
oxytocin
synthetic acth
evaluate adrenal sufficiency
no therapeutic use
cosyntropin
glucocorticoid receptor antagonist
adrenal hyperfunction, symptom control, assess acth secretion
mifepristone
mineralocorticoid antagonist
for hypersecretion
spironiolactone
glucocorticoid antagonist
-block cholesterol -> pregnolone
aminoglutethimide
glucocorticoid antagonist
block cortisol synthesis
metyrapone
glucocorticoid antagonist
inhibit p450 required for steroid synthesis
ketaconazole
active transport of iodide
iodide trapping
iodination of tyrosine residues of thyroglobulin
iodine organification
converts T4 to T3
-5’ deiodinase
extreme iodide excess inhibits organification and hormone secretion
wolff-chaikoff effect
t4-prodrug
thyroxine
t3-potent active hormone
triiodothyronine
synthetic t4=drug of choice
tx for myxedema coma-usually elderly with h/o hypothyroidism
levothyroxine
synthetitc t3 with rapid absorption
liothyronine
mixture of t4 and t3
liotrix
contraindications of T4 therapy?
adrenal insufficiency
coumarin anticoags
DM
CV dz
anti-thyroidal agent with thiocarbamide group
inhibits thyroid peroxidase
thionamides
=propylthiouracil
methimazole
anti-thyroidal
also partially inhibits t4->t3
faster acting
-indicated for preggers
propylthiouracil
anti-thyroidal
longer duragion of action
methimazole
anti-thyroidal most common tx in US -for complete or partial destruction of thyroid with no injury to adjacent tissue -no preggers can use with BB, ca2+ channel antags
Radioactive iodine (131)I
raises serum ca2+
g protein-coupled receptor
-induces osteoclast
-increase reabsorption of ca2+ and mg2+
PTH
lowers serum ca2+
calcitonin
increases intestinal ca2+ absorption
vitamin d
abnormality of bone remodeling
excessive bone turnover
disruption of normal architecture
deformities
pagets
defect of bone mineralization
vitamin d deficiency or resistance
rickets
osteomalacia
increases extracellular ca2+
increase new bone formation
decrease fracture risk (osteoporosis)
not used to treat hypocalcemia
teriparatide acetate (PTH analog)
use: pseudo/hypoparathyroidism, osteoporosis, rickets
moa: intracellular nuclear hormone receptor superfamily
-facilitates intestinal ca2+ absorption, increases calbindins expression, stimulates ca efflux into blood and synthesis of osteocalcin to produce bone matrix
calcitriol
cholecalciferol
use: severe hypercalcemia, osteoporosis (when hrt is CI), pagets
inactivates osteoclasts and increases renal excretion of ca2+
secreted by c cells of thyroid, stimulated by inc serum ca+
calcitonin
- bind to hydroxyapatite crystals, incorporated into bone matrix, taken up by osteoclasts
- incapacitate osteoclasts and inhibits bone resorption
- for osteoporosis in postmeno women, pagets, hypercalcemia
ae: hypo, jaw osteonecrosis
bisphosphonates
-alendronate, ibandronic acid, zoledronic acid
- increase bone mineral density
- human anit-rank ligand monoclonal antibody that inhibits proliferation, differentiation, maturation of pre-osteoclasts
denosumab
tissues that express 5alpha-reductase->dihydrotestosterone (DHT)
type 1: skin, bone, liver
type 2: urogenital tissues, genital skin
tissues that express p450 aromatase ->estradiol (estrogen)
fat liver bone
- binds androgen receptor
- nuclear receptor
testosterone moa
-weak androgen, progestin, glucocorticoid activity
-inhibits gonadal steroidogenesis
-in females, inhibits midcycle gonadotropin surge
for endometriosis, fibrocystic breast dz, hematological disorders
danazol
5alpha-reductase inhibitor
-blocks production of dht
use for benign prostatic hyperplasia
finasteride
used for pituitary suppression to inhibit gonadotropin release
estradiol
- antiandrogen with progestin activity
- use with estrogen to treat hirutism
cyproterone acetate
non-steroidal competitive antagonists
-use for prostate cancer with GnRH agonist
block action of adrenal androgens
flutamide
blocks both aldosterone and androgen receptors
inhibits 17alpha-hydroxylase
spironolactone
hirsutism
commonly abused anabolic steroid, to avoid detection on earlier drug tests
tetrahydrogesterone
what is IVRA
intarvenous regional anesthesia
where is IVRA used?
UE and LE surgery
advantage of IVRA
simple, reliable, rapid return to function, cost effective
Concerns of IVRA
duration of surgery, TQ time, LA toxicity
Locals used with IVRA
lidocaine, bupivacaine, ropivacaine, prilocaine
IVRA technique
IV contralateral limb butterfly in injured limb, in foot prepare la two TQ applied distal to fib head exsanguinate the limb inflate prox tq inject la through access if tq pain- inflast distal and release proximal
Adjuncts to IVRA
opiods, muscle relaxants, nsaids, clonidine, potassium, alkalizing agents
IVRA complications
seizures cardiac arrest/death incomplete anesthesia injection pain tq pain compartment syndrome neuro damage dysphoria, dizziness, facial tingling mistakenly deflating cuff injecting wrong drug
stimulate DA receptors
ABPR
apomorphine
bromocriptine-ERGOT
pramipexole
ropininole
anti-parkinsonion antiviral young anti cholinergic block uptake of DA while stim DA release
Amantidine
increases synthesis of DA
levodopa/carbidopa
inhibits da catabolism (MAO-B inhibitor)
dont take with SSRI
selegiline
block breakdown of DA
for pt with motor side effects from L-DOPA
Tolcapone-cns/peripheral
Entacapone-peripheral
neuroleptic for tourette’s
haloperidol
alpha-2 agonists
first line tx for tourettes
clonidine
block da receptors
tourettes tx
fluoxetine
gaba-b receptor agonist
for als
baclofen
reduce glutamate release
for als
riluzole
I.A. - halogenated hydrocarbon
- slow onset
- recovery must be accompanied with opiod/no
halothane
I.A. - halogenated hydrocarbon
- rapid onset/recovery
- most widely used
isoflurane
I.A. - halogenated hydrocarbon
- medium onset/recovery
- deep anesthesia
enflurane
I.A. - halogenated hydrocarbon
- rapid
- good induction agent
sevoflurane
I.A.
- analgesic
- poor muscle relaxant
- incomplete anesthesia
- rapid, vasoconstrictor
nitrous oxide
- ultra short acting barbituate
- induce anesthesia prior to administration of another agent
thiopental
- benzodiazepine
- slower than barbituates
- anterograde amnesia
- sedative
midazolam
-opioid analgesics
fentanyl
sufentanil
- gaba-rapid
- most common inducer
propofol
ultra short acting agent
-no analgesia, inducer
etomidate
dissociative anesthesia, catatonia, amnesia, unresponsiveness, ANALGESIC, no loss of conscousness
blocks NMDA receptors
ketamine
Ester derived local anesthesias
procaine
chloroprocaine
amide derived locals
all the other caines
order of Locals from fast to slow onset
RLP, P, ME, BL, C
rop, lido, prilo
order of locals from short to longer duration
PCL, M,P,R,BL,E
pro, chloro, lido
1% solution =
1g/100ml
or
10mg/ml
enhances the duration of L.A.’s
epinephrine