corticosteroids Flashcards

1
Q

why should patients report any blurred vision or other visual disturbances with corticosteroid treatment given by any route

A

because Central serous chorioretinopathy is a retinal disorder that has been linked to the use of corticosteroids

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2
Q

what are the Mineralocorticoid side effects

A
  • hypertension
  • sodium retention
  • water retention
  • potassium loss
  • calcium loss
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3
Q

what are the Glucocorticoid side effects

A
  • diabetes
  • osteoporosis (which is a danger, particularly in the elderly, as it can result in osteoporotic fractures for example of the hip or vertebrae). High doses are associated with avascular necrosis of the femoral head (when blood supply to the bone is interrupted. leads to disabling arthritis)
  • muscle wasting (proximal myopathy) can also occur
  • corticosteroid therapy is also weakly linked with peptic ulceration and perforation
  • psychiatric reactions may also occur
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4
Q

how do you minimise side effects of corticosteroids

A

by using the lowest effective dose for the minimum period possible. can also:

  • give a single dose in the morning (suppressive action least in morning)
  • the total dose for two days can sometimes be taken as a single dose on alternate days
  • intermittent therapy with short courses
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5
Q

which patients should be issued a Steroid Emergency Card

A

patients with adrenal insufficiency and steroid dependence who are at risk of adrenal crisis

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6
Q

what does the adrenal cortex secrete in normal healthy individuals

A

secretes CORTISOL (glucocorticoid) and ALDOSTERONE (mineralocorticoid).

note: cortisol- helps regulate metabolism and helps your body respond to stress. aldosterone- helps control blood pressure

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7
Q

name 2 corticosteroids which have very high glucocorticoid activity and insignificant mineralocorticoid activity

A

Dexamethasone and Betamethasone

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8
Q

what is the MHRA warning associated with long-term continuous or inappropriate use of all topical corticosteroids

A

there is a risk of topical steroid withdrawal reactions

  • can result in the development of rebound flares + reported as dermatitis with intense redness, stinging, and burning that can spread beyond the initial treatment area
  • use lowest potency needed for shortest time
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9
Q

what are the contraindications for all SYSTEMIC corticosteroids

A
  • Avoid injections containing benzyl alcohol in neonates (in neonates)
  • avoid live virus vaccines in those receiving immunosuppressive doses (serum antibody response diminished)
  • systemic infection (unless specific therapy given)
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10
Q

what are the contraindications for all TOPICAL corticosteroids

A
  • Acne
  • potent corticosteroids in widespread plaque psoriasis
  • rosacea
  • untreated bacterial, fungal or viral skin lesions
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11
Q

why must you avoid abrupt withdrawal of corticosteroids after prolonged use

A

Abrupt withdrawal after a prolonged period can lead to acute adrenal insufficiency, hypotension, or death

  • adrenal atrophy develops after prolonged corticosteroid and can persist for years after stopping
  • note: adrenal atrophy is with all forms of administration but particularly systemic. if a patient get a significant illness/trauma/ surgical procedure, need to temporary increase dose of corticosteroid *
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12
Q

how may infections change in a patient who has been using corticosteroids for a long time

A
  • increased risk to infections and severity of infections
  • clinical presentation of infections may also be atypical

note this is due to suppressed immune system

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13
Q

which patients taking corticosteroids need a varicella–zoster immunoglobulin vaccine

A

patients who have used corticosteroids within 3 months + not immune to chickenpox

this is because patients receiving oral or parenteral corticosteroids are at risk of severe chickenpox

  • note rash is not necessarily a prominent feature of this chicken pox. symptoms are pneumonia, hepatitis and disseminated intravascular coagulation.*
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14
Q

what should happen if a patient taking oral or parenteral corticosteroids has a confirmed case of chickenpox

A

need specialist care and urgent treatment

  • Corticosteroids should not be stopped and dosage may need to be increased.
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15
Q

what do patients taking corticosteroids need to avoid exposure to

A

measles (and chicken pox)

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16
Q

what are the symptoms of psychiatric reactions that can happen if a patient is taking systemic corticosteroids (particularly high doses)

A

symptoms of psychiatric reactions: euphoria, insomnia, irritability, mood lability, suicidal thoughts, psychotic reactions, and behavioural disturbances

  • reactions frequently subside on reducing the dose or discontinuing the corticosteroid
17
Q

when is gradual withdrawal of systemic corticosteroids needed

A

gradual withdrawal needed for patients whose disease is unlikely to relapse and have:

  • received more than 40 mg prednisolone (or equivalent) daily for more than 1 week
  • been given repeat doses in the evening
  • received more than 3 weeks’ treatment
  • recently received repeated courses (particularly if taken for longer than 3 weeks);
  • taken a short course within 1 year of stopping long-term therapy
  • other possible causes of adrenal suppression
18
Q

when may it be ok to stop corticosteroids abruptly

A

ok to withdrawal corticosteroids abruptly if:

if disease is unlikely to relapse + patient received treatment for 3 weeks or less

this is only for patients who are not included in the patient groups which need gradual withdrawal

19
Q

what are the indications for corticosteroids

A

may indications such as:

  • Suppression of inflammatory and allergic disorders
  • congenital adrenal hyperplasia
  • rheumatoid arthritis
  • immunosuppression
  • Ulcerative colitis, Crohn’s disease
  • asthma/ exacerbation of COPD
20
Q

which corticosteroid has very high mineralocorticoid activity and insignificant glucocorticoid activity

A

Fludrocortisone

21
Q

which corticosteroid has has equal glucocorticoid and mineralocorticoid activity

A

Hydrocortisone

22
Q

which corticosteroid exerts predominantly glucocorticoid effects with minimal mineralocorticoid effects

A

Prednisolone