systemic steroids and autoimmune conditions Flashcards
steroids are used for
1
2
inflammatory conditions adrenal insufficiency (to replace cortisol or aldosterone
___ mimics aldosterone
fludrocortisone
type of activity fludrocortisone has
used for
mineralocorticoid activity
-balanace of water and electrolytes
addisons disease
glucocoriticoids include steroids such as ___ and ____
have what type of properties
prednisone
hydrocoritsone
anti inflammatory
long term use of steroids require a ___ off
taper off
cushings syndrome is when the adrenal gland produces too much ____ or when exogenous steroids are taken in ___ doses
cortisol, high doses
addisons disease is the __ of cushings
opposite , the adrenal gland is not making enough coritsol
if exogenous steroids are stopped suddenly and not tapered it can cause ____
addisonian crisis
long term effects of steroids (cushings sydrome)
acne gi bleeding/ulcers diabetes hirstuism irregular or absent periods poor bone health infection impaired wound healing growth problems muscle wasting pink purple stretch marks bruising easily moon face (fat deposits in face) buffalo hump (fat deposit on back) glaucoma cataracts psychiatric changes anxiety depression delrium psychosis headache intracranial hypertension hypothyroidism
ways to reduce systemic steroid risks
- use alternate day dosing
- local joint injections
- low systemic absorption (like entocort ec) budesonide
- inhaled steroids (lungs)
- lowest possible dose for shortest possible time
steroid potency
C H P P M T D B
25 20 5 5 4 4 0.75 0.6
dexamethasone brands
dexpak 6, 10, 13 day
decadron
hydrocortisone brand
solu-cortef
methylprednisolone brand
medrol
solu-medrol
prednisone brand
deltasone
prednisolone brand
millipred
orapred ODT
triamcinolone brand
kenalog
short term SE of steroids
increase blood glucose (diabetes)
increase blood pressure (hypertension)
increase intraocular pressure (glaucoma)
emotional instablility (psychiatric conditions)
- increase appetite and weight gain
- insomnia
take steroids
with food in the AM
warnings with steroids
cause ADRENAL SUPPRESSION
must taper
cortisone is a prodrug of __
cortisol
prednisone is a prodrug of
prednisolone
a patient is immunocompromised on steroids when
using 2 mg/kg/day or greater
or
20mg/day of prednisone or prednisone equivalent
for greater than 2 weeks
how to tapre steroids
over 1-2 weeks
and reduce the dose by 10-20 percent every few days
common syptoms of autoimmune diseases
fatigue, weakness and pain
lab tests for detecting inflammation
ESR, CRP, RF, ANA
the use of strong immunosupressants can increase the risk of certain conditions including
reactivation of tb. hep b and hep c
-testing and treatment must be done prior to the start of immunosupressant drugs
viruses
-if the virus can be prevented by a live vaccine it must be given prior to the start of immunosupressant therapy
lymphomas and certain skin cancers
infections
treating acute inflammation with steroids
give high dose initially to quickly reduce inflammation then taper dose down to treat the remaining inflammation while preventing a rebound attack
medrol therapy pack what it contains
21 x 4mg tablets used in a tapered schedule over 6 days
day 1: 6 tabs
2: 5 tabs
3: 4 tabs
4: 3 tabs
5: 2 tabs
6: 1 tab
symptoms of RA
joint swelling pain stiffness bone deformity weakness
morning stiffness worse after rest
bilteral symmetrical disesase
lab tests for RA
anti citrullinated peptide antibody (ACPA)
RF
(RF can be positive due to another autoimmune disorder)
preferred initial treatment for RA
methotrexate
for patients with moderate or high disease activity despite MTX
a combo or DMARDS or TNF inhibitor biologic or non tnf biologic with or without MTX is recommended
never use two ___ ___ in combo
biologic DMARDS
what to use for RA flares
steroids
non biological DMARDS
methotrexate (trexall)
hydroxychloroquine (plaquenil)
sulfasalazine
leflunomide
trexall
methotrexate
plaquenil
hydroxychloroquine
inhibits dihydrofolate reductase inhibiting folate
methotrexate
inhibits pyrimidine synthisis
leflunomide (arava)
two nonbiologic dmards that you dont use in pregnancy
methotrexate and leflunomide
never dose methotrexate __ for RA
daily, its 7.5- 20mg weekly single dose never divided
methotrexate boxed warnings
hepatoxicity
myleosuppression
mucositiosis/stomatitis
pregnancy (teratogenic)
methotrexate CI
pregnancy, breastfeeding, alcoholism, chronic liver disease
methotrexate monitoring
CBC, LFTs, chest xray, hep b&c serologys
can give __ with MTX to decrease hematoligcal, GI and hepatic side effects
folate
plaquenil take with
food or milk
plaquenil can cause
irreversible retinopathy (EYE EXAM)
n/v/d abdominal pain rash itching HA vision changes pigmentation changes or skin and hair bone marrow supression(anemia, leukopenia, thrombocytopenia)
sulfasalazine CI
with sulfa or salicylate allergy
can cause yellow orange discoloration of the skin or urine
leflunamide avoid in
pregnancy
hepatotoxicity
must have neg. preg. test prior to starting and use 2 forms of BC during treatment. if preg. is desired must wait 2 years after accelerated elimination procedure.
with leflunomide use accelerate drug elimination upon discontinuation
1) cholestyramine 8 grams tid x 11 days
2) activated charcoal susp. 50 gram q12h x 11 days
methotrexate should not be taken with
alcohol
renal elimination of mtx is decreased by
nsaids and aspirin use caution can cause toxicity
all jax inhibitors are
PO and end int -tinib
jax inhibitors boxed warnings
- serious infections including TB (screen for active and latent before starting)
- malignancy: increase risk
- thrombosis: increase risk (sometimes fatal) blood clots
do not use jax inhibitors with
biologic DMARDs
jax inhibitors listed
xeljanz (tofacitinib)
baricitinib (olumiant)
upadacitinib (rinvoq)
anti TNF biologic dmards stands for
tumor necrosis factor alpha inhibitors
anti tnf biologic dmards
etanercept (enbrel) adalimumb (humira) infliximab (remicade) certolizumab pegol (cimzia) golimumab (simponi)
entanercept brand given
enbrel SC weekly
adalimumab brand given
humira sc every other week
infliximab brand given
remicade iv every 8 weeks
certolizumab brand given
cimzia sc every other week
golimumab brand given
simponi sc given monthly
weekly anti tnf dmard
enbrel (etanercept)
every other week tnf dmard
humira
cimzia
iv dmard
remicade
mtx is first line and anti tnf biologics are add on therapy however if the initial presentation is severe they can be started as ___ ___ with or without MTX
initial therapy
simponi (golimumab) requires a ___
filter
infliximab (remicade) ___ only
ns only