RN Nursing · Medications Affecting the Endocrine System
Systemic Corticosteroids: Nursing Pharmacology Study Guide
A focused review of systemic corticosteroids, including key drugs, indications, mechanism, side effects, and critical nursing safety considerations for NCLEX preparation.
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Systemic corticosteroids are high-yield NCLEX drugs because they touch nearly every body system and carry serious safety risks if mismanaged. This note summarizes the key agents, indications, mechanisms, side effects, and the nursing priorities every student must master.
Key Drugs to Know
| Drug | Type | Key Exam Clue |
|---|---|---|
| Prednisone | Oral corticosteroid | Most tested |
| Prednisolone | Oral corticosteroid | Commonly used in pediatrics |
| Methylprednisolone | IV/Oral | Acute flare drug |
| Dexamethasone | Long-acting | Brain swelling (cerebral edema) |
| Hydrocortisone | Short-acting | Adrenal crisis |
Memory tip: Drugs ending in “-SONE” are steroids.
Indications
- Asthma and COPD exacerbations
- Autoimmune disorders (SLE, RA)
- Allergic reactions
- Organ transplant (immunosuppression)
- Cerebral edema
- Adrenal insufficiency
Mechanism of Action
- Suppress inflammation
- Suppress the immune response
- Increase blood glucose
- Mimic endogenous cortisol
Side Effects by Body System
| Body System | Effect | Why It Matters |
|---|---|---|
| Metabolic | Hyperglycemia | Monitor glucose |
| Immune | Infection risk | Masks fever |
| GI | Peptic ulcers | Give with food |
| Musculoskeletal | Osteoporosis | Fracture risk |
| Fluid balance | Sodium retention | Edema, monitor BP |
| Endocrine | Adrenal suppression | Do not stop abruptly |
CUSHINGOID Mnemonic
- C – Cataracts
- U – Ulcers
- S – Sugar high (hyperglycemia)
- H – Hypertension
- I – Infection
- N – Necrosis (bone / avascular)
- G – Growth suppression
- O – Osteoporosis
- I – Immunosuppression
- D – Depression
Nursing Safety Rules
- Never stop steroids abruptly.
- Taper gradually to prevent adrenal crisis.
- Monitor blood glucose regularly.
- Monitor for infection — even without fever.
- Give with food to prevent GI irritation.
- Avoid live vaccines during therapy.
Adrenal Crisis (Emergency)
Occurs with sudden withdrawal of long-term steroid therapy.
Signs:
- Severe hypotension
- Weakness
- Hypoglycemia
- Shock
Treatment:
- IV hydrocortisone and IV fluids
Exam priority: Never abruptly discontinue long-term steroids.
Common NCLEX Traps
- Stopping prednisone suddenly
- Giving live vaccines during therapy
- Ignoring elevated blood glucose
- Missing infection because there is no fever
- Forgetting osteoporosis risk
Key Takeaways
- Systemic corticosteroids suppress inflammation and immunity.
- They increase blood glucose and infection risk while masking fever.
- They must be tapered slowly to prevent adrenal crisis.
- Long-term use produces Cushing-like effects (remember CUSHINGOID).
- Hydrocortisone IV + IV fluids is the treatment for adrenal crisis.
- Avoid live vaccines and give oral steroids with food.
Test yourself on Adrenal Medications
228 practice questions, each with a full teaching rationale.
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