RA Flashcards
Rheumatoid Arthritis
a. long-term use of NSAIDs is an effective cure for rheumatoid arthritis
a) False, there is no cure RA. NSAIDs are used for short term pain management
Rheumatoid Arthritis
b. methotrexate toxicity is increased with folic acid supplementation
b) False, methotrexate is a folic acid antagonist. Therefore, folic acid supplementation will decrease methotrexate toxicity
Rheumatoid Arthritis
c. sulfasalazine is metabolised by gut bacteria into its active form
c) True, Cleaved in GIT sulfapyridine (RA) + 5-aminosalicylic acid (IBD)
Rheumatoid Arthritis
d. etanercept binds to TNF and inhibits it
d) True, binds circulating and receptor bound TNF alpha
Rheumatoid Arthritis
e. cyclosporine causes dose-related nephrotoxicity
e) True, cyclosporine is nephrotoxic
Drugs used in the management of rheumatoid arthritis
a. azathroprine is a folic acid antagonist
a. False. Azathioprine’s mechanism of action is not entirely understood but it may be related to inhibition of purine synthesis, along with inhibition of B and T cells. Methotrexate is a folic acid antagonist
Drugs used in the management of rheumatoid arthritis
b. methothrexate slows the progression of RA
b. True
Drugs used in the management of rheumatoid arthritis
c. cyclosporine is a nephrotoxic agent
c. True
Drugs used in the management of rheumatoid arthritis
d. sulfasalazine is used in the treatment of Crohn’s Disease
d. True, for Crohns and RA
Drugs used in the management of rheumatoid arthritis
e. chloroquine is converted to 5-ASA in the GIT
e. False, sulfasalazine is cleaved into 5-ASA
Rheumatoid Arthritis and Gout
a. celecoxib is used to manage pain in arthritis
a. True,
Rheumatoid Arthritis and Gout
b. sulfasalazine increases uric acid secretion in gout
b. False, sulfasalazine Inhibits T cell response and Decrease B cell antibody production in RA
Rheumatoid Arthritis and Gout
c. methotrexate inhibits DNA synthesis in immune cells
c. False, this is the MOA of leflunomide
Rheumatoid Arthritis and Gout
d. probenecid prevents the destruction of joints in rheumatoid arthritis
d. False, probenecid inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate in gout
Rheumatoid Arthritis and Gout
e. allopurinol inhibits xanthine oxidase
e. True, allopurinol is a xanthine oxidase enzyme inhibitor
In the treatment of rheumatoid arthritis and gout
a. methotrexate inhibits the action of tumour necrosis factor
a. False, folic acid antagonist that inhibits dihydrofolate reductase
In the treatment of rheumatoid arthritis and gout
b. leflunomide is contraindicated prior to falling pregnant
b. True, requires a 2 year wash out period
In the treatment of rheumatoid arthritis and gout
c. infliximab decreases circulating tumour necrosis factor
c. True, bind circulating and bound TNFa
In the treatment of rheumatoid arthritis and gout
d. colchicine is used to treat rheumatoid arthritis
d. False, colchicine is used to treat acute gouty attacks
In the treatment of rheumatoid arthritis and gout
e. aspirin is used as an analgesic in gout
e. False, may exacerbate gouty attacks
In the treatment of rheumatoid arthritis
a. methotrexate inhibits DNA synthesis in immune cells
a. False
In the treatment of rheumatoid arthritis
b. leflunomide is safe to use during pregnancy
b. False, requires a 2 year wash out period
In the treatment of rheumatoid arthritis
c. infliximab binds to TNF-α
c. True
In the treatment of rheumatoid arthritis
d. folic acid supplementation aggravates methotrexate-induced hepatotoxicity
d. False, methotrexate is a folic acid antagonist. Supplementation will reduce adverse effects
In the treatment of rheumatoid arthritis
e. sulfasalazine is hepatotoxic
e. True, hepatotoxic, myelotoxic
Disease modifying agents in rheumatoid arthritis
a. methotrexate causes mucosal ulceration
a. True. Methotrexate causes hepatotoxicity, mucosal ulceration and ulcers in the mouth and nephrotoxicity
Disease modifying agents in rheumatoid arthritis
b. leflunomide inhibits T-cell proliferation
b. True, Inhibits mononuclear and Tcell proliferation
Disease modifying agents in rheumatoid arthritis
c. sulfasalazine increases TNF-α levels in arthritic joints
c. False, reduces
Disease modifying agents in rheumatoid arthritis
d. infliximab is safe to use in patients with latent tuberculosis
d. False, may activate the latent TB because of the immune suppression
Disease modifying agents in rheumatoid arthritis
e. hydroxychloroquine is a folic acid antagonist
e. False, methotrexate is a folic acid antagonist. Hydroxychloroquine is a fluoroquinolone