Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. CHAPTER 33 Adrenal Drugs
2 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adrenal Gland Adrenal cortex Adrenal medulla Each portion has different functions and secretes different hormones Feedback process of hormone regulation
3 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adrenal Gland (cont’d) Adrenal medulla secretes catecholamines Epinephrine Norepinephrine Adrenal cortex secretes corticosteroids Glucocorticoids Mineralocorticoids (primarily aldosterone) All adrenal cortex hormones are steroid hormones
4 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adrenocortical Hormones Oversecretion leads to Cushing’s syndrome Undersecretion leads to Addison’s disease
5 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adrenal Drugs Can be either synthetic or natural Many different drugs and forms Glucocorticoids Topical, systemic, inhaled, nasal Mineralocorticoid Systemic Adrenal steroid inhibitors Systemic
6 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adrenocortical Hormones (cont’d) Glucocorticoids beclomethasone (several formulations) fluticasone propionate hydrocortisone (several formulations) cortisone methylprednisolone prednisone Many others
7 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adrenocortical Hormones (cont’d) Mineralocorticoid fludrocortisone acetate Adrenal steroid inhibitor aminoglutethimide
8 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Mechanism of Action Most exert their effects by modifying enzyme activity Different drugs differ in their potency, duration of action, and the extent to which they cause salt and fluid retention Glucocorticoids inhibit or help control inflammatory and immune responses
9 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Indications Wide variety of indications Adrenocortical deficiency Cerebral edema Collagen diseases Dermatologic diseases GI diseases Exacerbations of chronic respiratory illnesses, such as asthma and COPD
10 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Indications (cont’d) Wide variety of indications (cont’d) Organ transplant (decrease immune response) Palliative management of leukemias and lymphomas Spinal cord injury Many other indications
11 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Indications (cont’d) Glucocorticoids administration By inhalation for control of steroid-responsive bronchospastic states Nasally for rhinitis and to prevent the recurrence of polyps after surgical removal Topically for inflammations of the eye, ear, and skin
12 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Indications (cont’d) Antiadrenals (adrenal steroid inhibitors) aminoglutethimide Used in the treatment of Cushing’s syndrome, metastatic breast cancer, and adrenal cancer
13 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Contraindications Drug allergies Serious infections, including septicemia, systemic fungal infections, and varicella However, in the presence of tuberculous meningitis, glucocorticoids may be used to prevent inflammatory CNS damage
14 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Contraindications (cont’d) Cautious use in patients with Gastritis, reflux disease, ulcer disease Diabetes Cardiac/renal/liver dysfunction
15 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adverse Effects Potent effects on all body systems Cardiovascular Heart failure, cardiac edema, hypertension—all caused by electrolyte imbalances (hypokalemia, hypernatremia) CNS Convulsions, headache, vertigo, mood swings, nervousness, insomnia, “steroid psychosis,” others
16 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adverse Effects (cont’d) Potent effects on all body systems Endocrine Growth suppression, Cushing’s syndrome, menstrual irregularities, carbohydrate intolerance, hyperglycemia, others GI Peptic ulcers with possible perforation, pancreatitis, abdominal distention, others
17 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adverse Effects (cont’d) Potent effects on all body systems Integumentary Fragile skin, petechiae, ecchymosis, facial erythema, poor wound healing, hirsutism, urticaria Musculoskeletal Muscle weakness, loss of muscle mass, osteoporosis
18 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Adverse Effects (cont’d) Potent effects on all body systems Ocular Increased intraocular pressure, glaucoma, others Other Weight gain
19 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Nursing Implications Perform a physical assessment to determine baseline weight, height, intake and output status, vital signs (especially BP), hydration status, immune status Obtain baseline laboratory studies Assess for edema and electrolyte imbalances
20 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Nursing Implications (cont’d) Assess for contraindications to adrenal drugs, especially the presence of peptic ulcer disease Assess for drug allergies and potential drug interactions (prescription and over-the- counter) Be aware that these drugs may alter serum glucose and electrolyte levels
21 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Nursing Implications (cont’d) Systemic forms may be given by oral, IM, IV, or rectal routes (not SC) Prepare and administer according to manufacturer’s directions Oral forms should be given with food or milk to minimize GI upset
22 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Nursing Implications (cont’d) For topical applications, follow instructions about use and type of dressing, if any, to apply Clear nasal passages before giving a nasal corticosteroid
23 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Nursing Implications (cont’d) After using an orally inhaled corticosteroid, instruct patients to rinse their mouths to prevent possible oral fungal infections Teach patients on corticosteroids to avoid contact with people with infections and to report any fever, increased weakness, lethargy, or sore throat
24 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Nursing Implications (cont’d) Patients should be taught to take all adrenal medications at the same time every day, usually in the morning, with meals or food Patients should not take with alcohol, aspirin, or NSAIDs
25 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Nursing Implications (cont’d) Sudden discontinuation of these drugs can precipitate an adrenal crisis caused by a sudden drop in serum levels of cortisone Doses are usually tapered before the drug is discontinued
26 Mosby items and derived items © 2011, 2007, 2004 by Mosby, Inc., an affiliate of Elsevier Inc. Nursing Implications (cont’d) Monitor for therapeutic responses Monitor for adverse effects