Unit 1: Care of Patients with Adrenal Gland Problems PDF
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Cape Fear Community College
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This document provides an overview of the adrenal glands, their functions, and various related disorders. It details the medulla and cortex components, highlighting their respective hormones and roles in regulating bodily functions. Useful for understanding the adrenal glands, their hormones and associated medical conditions.
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***[Unit 1]*** - Care of Patients with Adrenal Gland Problems - Adrenal glands - Each adrenal gland has two separate parts: - **Medulla - inner portion** - **Catecholamines** - **Epinephrine** - **N...
***[Unit 1]*** - Care of Patients with Adrenal Gland Problems - Adrenal glands - Each adrenal gland has two separate parts: - **Medulla - inner portion** - **Catecholamines** - **Epinephrine** - **Norepinephrine ** - **Cortex - outer portion** - **Mineralocorticoids → aldosterone (salt)** - **Glucocorticoids → cortisol (sugar)** - **Androgens → sex hormones (sex)** - Each part secrets distinct hormones - Adrenal Cortex: Mineralocorticoids (Aldosterone) - **Regulates extracellular fluid volume** - **Aldosterone causes: ** - **Sodium reabsorption, water reabsorption** - **Potassium loss/excretion ** ![](media/image2.png) - Adrenal Cortex: Glucocorticoids (Cortisol) - **Secreted in response to the release of:** - **Corticotropin releasing hormone (CRH) from hypothalamus, then stimulating anterior pituitary gland → then releases** - **Adrenocorticotropic hormone (ACTH) from anterior pituitary → then releases cortisol ** - Cortisol travels through blood and binds to glucocorticoids - Aka the STRESS hormone - **Immune response** - **Regulation and decreases inflammatory responses (hence why we give steroids)** - **Blood glucose** - **Cortisol increases BG b/c of nucleogenesis in the liver and increases insulin effectiveness** - **Initially breaks down fat, but if high levels are maintained for a prolonged amount of time, it allows fat storage in the body rather than breaking it down ** - **Regulate BP** - **Cortisol increases BP by causing vasoconstriction and also increases GFR (glomerular filtration rate)** - **Emotional stability** - **Boosts alertness in the brain ** - **Bones** - **Causes the bones to weaken and slows bone growth process** - **Wounds** - **Causes them to heal slower ** - When are levels highest: **[in the morning!]** - Adrenal Cortex: Sex Hormones![](media/image4.png) - **Androgens - male and female traits** - **These kick in to start puberty ** - Adrenal Medulla - **Center of the adrenal gland** - **Catecholamines cause "fight or fight" response** - Norepinephrine - Epinephrine - Adrenal Dysfunction - **Adrenal hypofunction** - Inadequate secretion of CRH from hypothalamus - Inadequate secretion of ACTH from anterior pituitary - Decreased secretion of glucocorticoids and mineralocorticoids from adrenal cortex - Direct problems of adrenal glands - **Primary: problem localized to adrenal glands** - Acute - **Waterhouse-Friderichsen** - **Complication of meningitis** - **Sudden increase in pressure in adrenal glands, causing them to rupture ** - **Adrenalectomy** - **Removal of adrenal gland(s)** - **Radiation therapy to abdomen ** - Chronic (ADDison's Disease) - **A**utoimmune - most common in US - **D**iseases - Tuberculosis (destroys cortex) - HIV - Carcinoma - **D**amage - Trauma (metastatic) - Exposure to toxins - Risk Factors for Primary Adrenal Insufficiency - Other autoimmune disorders - Age - Family hx - **Secondary (most common): problem w/ pituitary or hypothalamus** - **Cessation of long corticosteroid therapy** - **Pituitary adenomas (pituitary tumors)** - **Can suppress release of ACTH** - **Hypophysectomy ** - **Pituitary gland removal ** - **Ischemic injury (Sheehan's syndrome)** - **When during childbirth, bleeding out causes ischemia to the pituitary and it essentially dies off ** - **Head trauma** - **Surgery ** - Risk factors: any cause of insufficient ACTH secretion - Pituitary adenomas - Large CNS tumors and those listed above - Pathophysiology - **Symptoms may appear gradually** - **With acute adrenal insufficiency: Addisonian crisis occur very quickly/severe** - Decreased cortisol - sugar - Decreased aldosterone - salt - Decreased androgens - sex - History - **Fatigue** - **Increased salt cravings ** - **Weight loss** - **Anorexia** - **Menstrual changes** - **Hair loss** - **Changes in distribution of body hair** - **GI disturbances** - **Low blood sugar** - **Muscle/joint pain** - **Irritable/depressed**![](media/image6.png) - Assessment - Vitals - Fluid balance - \*A.D.: a chronic onset\* - Electrolyte levels - Report findings of crisis - Diagnostics - Labs - **For decreased cortisol: low sugar/glucose** - **For decreased aldosterone: low sodium and high potassium** - **In primary adrenal hypofunction: high ACTH levels and high melanocyte stimulating hormone (MSH)** - **MRI/CT to assess adrenal gland and pituitary gland** - **ACTH stimulation test - GOLD STANDARD TO DIFFERENTIATE PRIMARY VS SECONDARY ** - **Giving ACTH to stimulate cortisol creation and excretion** - **Expectation:** increased cortisol - If they don't, it's **confirmation of primary adrenal insufficiency ** - Treatment - Hormone replacement therapy - **Clients will need hormone replacement for life!** - **[Stopping it can cause an adrenal crisis/Addisonian crisis]** - - **Aldosterone deficiency** - Mineralocorticoid - **Fludrocortisone ** - Cortisol deficiency - Corticosteroids - **Hydrocortisone** - Androgen deficiency - **Testosterone ** - **Adrenal Crisis/Addisonian Crisis ** - **Medical emergency! (Acute Adrenal Insufficiency)** - **Need for cortisol and aldosterone is greater than the body's supply!** - Causes: - **Added stress (surgery, sepsis)** - **Abrupt stop of steroids ("-sone")** - **Drop in BP (hypotensive shock; normal: 120/80)** - **Low BG** - Treatment - **Rapid IV treatment of [steroids, saline fluids and sugar]** - **Tx of H2 histamine blocker (Famotidine aka Pepcid) to prevent stress ulcers and gastroenteritis** - Interventions: - **Vital signs q 1-4 hrs** - **Monitor for dysrhythmias via EKG; cardiac monitoring in general ** - **Monitor I&Os** - **Daily weights** - **Slow position changes** - **Monitor lab values ** - **[Report to MD:]** - **Client develops arrhythmias** - **Administer IV glucose and insulin to decrease potassium levels** - **Can given K^+^ wasting diuretics (Furosemide, Hydrochlorothiazide)** - **Avoid K^+^ rich foods (bananas, oranges, kidney beans, dark leafy green vegetables, potatoes, dried apricot, avocado)** - Nursing Education - Wear a medical bracelet - Will never be completely cured, but can treat symptoms - Can carry intramuscular glucocorticoid pens for emergencies - Medications and dosages based on how our body regulates throughout the day - Moderate exercising ![](media/image8.png) - Teaching for Home Steroids - Interventions for adrenal hypofunction - ADD steroids - Hydrocortisone (Cortef, Hydrocortone, others0 - Administer \_\_\_\_\_\_\_\_\_\_\_\_ - What time? \_\_\_\_\_\_\_\_\_\_\_\_ - W/ or W/O food? \_\_\_\_\_\_\_\_\_\_ - Too much can \_\_\_\_\_\_\_\_\_\_\_ - Cardiovascular effects include HTN and tachycardia (use with caution) - LT therapy may result in: \_\_\_\_\_\_\_\_\_\_\_\_ - Treat w/ caution in: hypothyroidism - Adrenal Hyperfunction - Cushing's Disease vs. Syndrome - **D**isease: en**D**ogenous **(something is wrong in the body)** - **Too much cortisol being released** - Causes: - **Tumor** (pituitary - secreting too much ACTH) - **Small cell lung cancer - MOST COMMON ** - **S**yndrome: exogenous (something is wrong outside of the body) - **Most likely taking high doses of steroids** (usually for like COPD, asthma, and RA) - Risk factors for Cushing Disease - Sex - Females 5X more likely to have this than males - Age - 25-40 y.o. - Cushing Disease: Assessment - **History** - **Appetite** - **Weight gain** - **Changes in sleep** - **Easy bruising** - **Physical assessment** ![](media/image10.png) - **Psychosocial assessment ** - Cushing Disease: Pathophysiology - Too much cortisol being released - Cushing Disease: Diagnostics ![](media/image12.png) - **In ACTH plasma level test, we expect to see a low results b/c cortisol is already high** - **In overnight low-dose dexamethasone suppression test, in Cushing Disease, cortisol will be high in the AM** - Cushing Disease: Nursing Diagnoses - **Impaired mobility** - **Impaired skin integrity** - **Disturbed body image** - Cushing Disease: Interventions - **If due to exogenous medication (syndrome): ** - **Taper down steroids to allow slow adrenal recovery** - **Report temp over 100.4 - worry about infection ** - **If due to endogenous reasons (disease):** - **Restore and maintain fluid and electrolyte balance** - **Restrict sodium intake** - **Possibly restrict fluid intake (depends)** - **Take daily weights as same time every day ** - **Assess skin for any injuries and turn q2h** - **Avoid diuretic use ** - **Pharmacological interventions:** - **Treatment consists of drugs that interfere w/ ACTH production or adrenal hormone synthesis to decrease cortisol production** - **Steroidogenesis inhibitors:** - **Ketoconazole (Nizoral)** - **Metyrapone (Metopirone)** - **Aminoglutethimide (Elipten)** - **Mitotane (Lysodren)** - **Cyproheptadine (Periactin) - interferes w/ ACTH production** - **Mifepristone - for pts w/ T2DM who don't respond to other tx** - **Pasireotide (Signifor)** - **Inhibits ACTH secretion ** - **Nonsurgical Interventions** - **Preventing fluid overload** - **Assess q2h for fluid overload** - **Nutrition therapy** - **Prevent skin breakdown ** - **Surgical Options** - **Adrenalectomy - removal of adrenal gland ** - **Unilateral or bilateral depending on where the issue is** - **Goals:** - **Stabilize BP, sugar and potassium in prep for surgery** - **Provide post op care** - **Will to go ICU for observation and to ensure no adrenal crisis happens** - **VS q15 mins** - **Administer and titrate IV cortisone to meet therapeutic levels to prevent crisis ** - **Prevent complications ** - **Monitor for bleeding** - **Shock can occur** - **Monitor BP and HR - shock** - **Monitor urine output** - Discharge Planning/Education - Steroid replacement for life - Prevent injury (skin, fractures) - Prevent infection - Manage BG levels - Engage in weight-bearing exercises - Gradually return to normal activities - Stress mgmt - Follow-up care and lab monitoring - Prevent acute adrenal insufficiency - Discharge Planning (post-adrenalectomy) - Cortisol replacement - Avoid stress, temp extremes, and illness b/c they can cause crises - Contact HCP: - Fever \> 100.4 - Chills - Cough - Sore throat - Other s/s of illness - Monitor surgical incision - Lifting restrictions - Wear a medical alert bracelet ![](media/image14.png) - Hyperaldosteronism - Increased secretion of aldosterone (excess mineralocorticoid) - AL: **A**dds sodium and water **IN**, **L**ets potassium **OUT** - Patho - **Primary (Conn's Syndrome)** - **Excess secretion of aldosterone from adrenal glands** - Cause: - **Adrenal adenoma (benign tumor)** - **Secondary ** - Excess secretion of aldosterone due to **high plasma renin** - Causes: - **CKD** - **Renin secreting tumor ** - Assessment - **Hypokalemia (\< 3.5)** - **S/S: ST depression, decreased deep tendon reflexes, constipation, hypoactive BS, polyuria, diluted urine (low specific gravity) ** - **Hypernatremia (\> 145)** - **S/S: polydipsia (excessive thirst), swollen dry tongue, increased muscle tone** - **Hypertension** - **High BP (over 140/90)** - **Headaches** - **Facial redness/flushing ** - Diagnostic: - **CT or MRI to look for adrenal adenoma** - Primary labs: - **Decreased serum potassium** - **Increased renin levels** - **Increased sodium** - **Increased aldosterone ** - Interventions - Tx of choice: **adrenalectomy (one or both)** - On a **sodium restricted diet** prior to surgery - Pre-op: **correct potassium levels by administering spironolactone** - **Goal: the lower the fluid volume, the lower the aldosterone!** - **Unilateral adrenalectomy will need temporary replacement of glucocorticoid (cortisol) both before and after surgery and if both are removed, it will be lifelong; it will prevent crisis** - Nonsurgical: - **Give spironolactone** - **Watch for/education:**![](media/image16.png) - **Hypokalemia s/s** - **Hypernatremia s/s ** - Care of the Patient w/ Posterior Pituitary Problems - Posterior pituitary (neurohypophysis) - Contains: - Made in hypothalamus, stored in posterior pituitary - Antidiuretic hormone (vasopressin) - Maintains osmolality of blood by water conservation or excretion - Normal range: 280-295 - ADH = Adds Da H~2~O - Oxytocin - Stimulates uterine contractions during childbirth - Hypo-ADH = diabetes insipidus (DI) - **[First sign: polyuria - dumping lots of urine; polydipsia - very thirsty]** - **Central DI: problem w/ ADH synthesis, transport or release** - Causes: TBI, pituitary surgery, tumor, infections - **Nephrogenic: inadequate renal response to ADH** - Causes: drugs, renal artery stenosis - **Dipsogenic : excessive H~2~O intake** - Cause: psych or lesion in thirst center - Assessment: - Seven Ds for DI - **Diuresis** (lots of urine output; usually \>200 mL/hr) - **Diluted** (low specific gravity; usually \ - **Dry inside** (hypernatremia and blood osmolality is high) - **Drinking a lot** (polydipsia) - **Dehydrated** (dry mucosa, poor skin turgor) - **Decreased BP** (d/t low fluid volume) - **Desmopressin** (tx; Vasopressin in ADH form) - Labs - 24 hr I&O - lg amount of output; can be up to 30 L - Plasma osmolality - increased - Serum Na^+^ levels - increased - Urine osmolarity - decreased - Urine volume - increased - Urine specific gravity - decreased b/c increased urine concentration - Diagnostics - differential - Hx and physical exam - Blood tests - refer to labs above - Fluid deprivation test ![](media/image18.png) - Treatment - Interventions - Maintain adequate fluid status - Monitor I&O - Monitor BP and HR - Monitor urine output - Monitor LOC - Monitor for overhydration s/s - Pt teaching for self-mgmt - Monitoring - Daily weights - Good oral hygiene - Meds and education - Take at same time every day - Overcorrection can lead to water intoxication - Monitor for overhydration s/s - Will need lifelong medications - For central DI: medications - C/I: CAD and PVD - Desmopressin acetate (DDAVP) - Vasopressin - For nephrogenic DI: tx - Low sodium diet - Monitor fluid intake - Thiazide diuretics (can increase water and sodium reabsorption) - Evaluation - Pt has restored fluid balance - Pt reports absence of nocturia - Pt understands how to use prescribed medication - Pt being managed for DI is responding appropriately w/ urine output volume decreasing and specific gravity increasing - Hyper-ADH = SIADH - Syndrome of Inappropriate Diuretic Hormone (SIADH) - Causes: - Small cell lung cancer - Severe brain trauma (trauma/surgery) - Sepsis infections of brain (meningitis) - Specific drugs - Assessment - Seven S's for SIADH - Stop urination (urine output is very low) - Sticky and thick urine (specific gravity is \ 1.030) - Soaked inside (low sodium level; hyponatremia; hypo-osmolality) - Sudden weight gain - Seizures (H/A, confusion; low Na leads to these) - Severe high BP (too much vasopressin causes too much vasoconstriction; JVD) - Stopping fluids - Labs - Decreased plasma osmolarity - Low Na level - Increased urine osmolarity - Decreased urine volume - Increased urine specific gravity = increased urine concentration - Interventions/treatment - Safety - Seizure precautions - Strict I&Os, daily weights, vitals - Heart and lungs sounds - Fluid restriction - Can offer gum or ice chips - Irrigation - Sodium replacement - Medications - Hypertonic saline (3%) - For correction of sodium levels - Give slowly - Don\'t increase sodium levels by no more than 8-12 mEq in a 24 hr period - Vasopressin receptor antagonist - blocks ADH activity; promotes sodium excretion w/o water loss - Tolvaptan and conivaptan - Diuretics (loop) - Can be used if sodium is above 125 - Issue: can still lose sodium and further drop - Mainly consider if not symptomatic - Evaluation of tx - Provide a safe environment - Monitor response to therapy - Balanced I&Os, stable VS, stable weight - Appropriate neuro status - Complies w/ fluid restriction - Performs frequent oral hygiene - Notifies healthcare team of any changes - Care of Patient w/ Anterior Pituitary Problems - Anterior pituitary (adenohypophysis) - Sits below hypothalamus - TSH - ACTH - GH - FSH - LH - PRL - MRH - Anterior pituitary HYPOfunction - Selective hypopituitarism - decrease in 1 or more hormones - Panhypopituitarism - decreased in all production of hormones in anterior pituitary - Most dangerous? - Etiology - Pituitary tumor - most common - Benign tumor/adenoma on pituitary gland - Autoimmunity - Severe hypotension or shock/ischemia - Sheehan's syndrome - Infarct to pituitary gland due to significant blood loss - Malnutrition - Infection - Destruction/trauma to pituitary gland (trauma, radiation, surgical procedures) - Idiopathic - Risk factors: - TBI - Cocaine use - Head bleed - Postpartum hemorrhage (Sheehan's syndrome) - Skin color - Regardless, hypopituitarism causes decreased secretion of target gland hormones - Diagnostics - Assessment - Hx - S/S pt is having - Recent trauma - What brought them in - Labs - Direct and indirect measurements - CT/MRI - Angiogram - Provocative/simulation testing - Clinical manifestations - Gonadotropin hormones (FSH/LH) - [Female s/s]: absence of secondary sex characteristics: amenorrhea, low estrogen, breast atrophy, decrease in axillary and pubic hair, decrease in libido, loss of bone density, infertility - [Male s/s]: absence of secondary sex characteristics: loss of facial and body hair, decreased muscle mass, decreased libido, loss of bone density, infertility - [Kids]: absence of puberty - Tx: replacement of deficient hormone - Men: testosterone - Administration: start w/ high dose and give until virilization occurs (start looking manly); IM, transdermal, implant, topical gel - C/I: prostate cancer b/c testosterone can feed cancer growth - Effective when: virilization occurs, increased libido - S/E: salt and water retention, edema, acne and skin irritation - Monitor: too much testosterone can cause feminization; BP, HR, weight - Adolescents: estrogen only - Low dose to imitate puberty and potentiate growth - Do not add progesterone until 2-3 yrs - Women: estrogen/progesterone - Shouldn't be administered before puberty - C/I: pulmonary embolism, breast cancer - Treatment - Surgical removal - Hypophysectomy - removal of entire pituitary gland - Issue: once the pituitary gland is removed, hypopituitarism occurs and will need tx for life - Craniotomy - Non-surgical - Radiation - Hormones - Anterior pituitary HYPERfunction - Increase in 1 or more hormones - The most common hormones produced in excess: - Prolactin, ACTH, GH - Etiology - Pituitary adenoma/tumor - First sign of these: vision changes and/or headache - Risk factors - Female - Family hx - Multiple endocrine neoplasia type 1 (MEN-1 syndrome) - Regardless, hypopituitarism, causes increased secretion of target gland hormones - Diagnostics - Assessment - Labs - CT/MRI - Suppression testing - Clinical manifestations - Female s/s: -- - Male s/s: -- - Kids: early puberty (precocious puberty; 9 in boys, 8 in girls) - Tx: primary goal is to allow kids to grow to adult height - GNRH inhibitors (implant, monthly shot) - Treatment - Surgical - Hypophysectomy w/ resection (tumor taken out through the nose) - Craniotomy - Non-surgical - Radiation - Hormones - Considerations: Post-hypophysectomy - Priority nursing goals - Provide post op care - Fluid status mgmt - Monitor surgical site - Elevate HOB - Institute seizure precautions - Sneeze w/ mouth open, prevent coughing, etc. - Report any signs of: H/A, light sensitivity, N/V, halo's sign, visual changes, etc. - could be sign of meningitis - In ICU for 1st 24 hrs and will need q1h neuro checks - Monitor for complications of hormonal deficiency - Replace deficient hormones - Wound care and monitoring for infection - Prevent brushing teeth for 10 days to prevent messing up surgical sutures - Education - Lifelong hormone replacement therapy - Signs of meningitis - Avoid actions that increase ICP/frequent rest periods - Stool softeners, high fiber diet - Squat if needed - No lifting over 20 lbs - Sneeze w/ mouth open - Position/sleep w/ HOB increased - Nasal care - Blood tinged mucus is normal post op - If lots of bright red blood coming out or lots of clear fluid, notify MD - Irrigation of the nose is fine - Look for halo's sign - Keeping appointments - Sudden changes in weight - Growth hormone - GH induces growth in nearly every tissue and organ in the body. - However, it is most notorious for its growth-promoting effect on \_\_muscles\_\_\_\_\_\_\_\_\_ and \_\_\_bones\_\_\_\_\_\_\_\_, especially in the adolescent years. - ALSO activates \_\_\_IGF-1 (insulin-like growth factor)\_\_\_\_\_\_ , which is responsible for many of the growth-promoting effects attributed to GH.. - Furthermore, it acts to inhibit apoptosis of the cell, thus prolonging the lifespan of existing cells. - The net result is to encourage the growth of tissue and to create a \_\_\_\_\_\_\_ environment in the body. - In addition, GH actively promotes the breakdown of \_\_\_\_\_\_\_\_\_\_\_ and mobilizes fatty acids from fat stores, helping to lower \_lipid levels\_\_\_\_\_\_\_\_\_ in the bloodstream. - Diagnosis: - Clinical findings - CT or MRI - Insulin-like growth factor 1 (IGF-1) levels - GH levels - HYPO: - IGF-1...therefore: - Decreased bone density - Pathological fractures - Decreased muscle mass - Increase visceral fat mass - Increased cholesterol - Premature atherosclerosis - Increased fatigue - Kids: - Decreased/slow height growth - Doesn't affect a child's intelligence - Hypoglycemia - Pituitary dwarfism - Interventions - Surgery/tumor removal - Human growth hormone (Soma[tropin]) - Who can use: kids whose growth plates haven't closed - C/I: growth plates who have closed, acute critical illnesses - When to administer: w/ typical release of hormone (give at nighttime) to mimic normal release patterns - S/E: hyperglycemia - Monitor: glucose tolerance - Cost: \$12-36K/yr - Success: improved body composition, increased bone density - HYPER: - **Kids:** - **Gigantism ** - **Adults:** - **Acromegaly: gigantism but in adults** - **Enlarged hands, feet, lips and nose** - **Increasing head size** - **Protrusion of lower jaw (malocclusion of teeth)** - **Thickened tongue (speech and dental issues)** - **Hypertrophy of vocal cords (voice gets deeper)** - **Joint pain** - **Hyperglycemia** - **Sleep apnea** - **Enlarged heart, lungs, and liver ** - Treatment: - Pharmacological mgmt: may be used alone or w/ surgery/radiation - Acromegaly: - **Somatostatin analogs:** - **Octreotide (Sandostatin)** - **Growth hormone receptor blocker:** - **Pegivsomant (somavert) ** - Gigantism: - **Surgery** is the most common tx option - Prolactin (PRL) - Hypo: - A decrease in the amount of prolactin produced by the pituitary gland can lead to insufficient milk being produced after giving birth - Most people w/ low PRL levels don't have any specific medical problems ![](media/image20.png) - Hyper: - Decreased libido - Impotence - Infertility - Gynecomastia in men - Galactorrhea (men, women, or kids) - What blocks prolactin? Dopamine! - Tx: - Hyper: - Dopamine agonists - stimulates dopamine receptors in the brain and inhibit release of GH and PRL (and can help shrink tumors) - **Bromocriptine mesylate (Parlodel)** - **Cabergoline (Dostinex)** - Thyroid Stimulating Hormone (TSH) - Adrenocorticotropic hormone (ACTH) - Thyroid & Parathyroid - Hypothalamus → TRH → anterior pituitary → TSH → thyroid → T4 and T3 - T3 and T4 increase metabolic rate, stimulates bone resorption, activates sympathetic nervous system (increases cardiac output) - Thyroid Disorders - Hyperthyroidism - [Primary]: problem w/ gland itself - Graves disease - most common cause; autoimmune - Risk factors: - Women - Ages 25-40 - Hx of autoimmune disorders - Toxic nodular goiter - follicles are producing thyroid hormone (independently of TSH) - Usually affects people over 40 - Adenoma - benign tumor where cells are releasing TSH - Thyroiditis - inflammation or damage to the thyroid gland - [Secondary]: problems outside of thyroid - Pituitary tumor - Exogenous hyperthyroidism ![](media/image22.png) - Could be taking too much thyroid hormone - Some drugs can cause this issue - Pathophysiology - Thyroid is producing excess thyroid hormone for whatever contributing factors may be the cause - Assessment - Hx - Physical (think High & Hot) - **Increased HR and BP** - **Increased energy (anxiety, fidgety, nervousness)** - **Decreased sleep (insomnia)** - **Decreased weight (fat metabolism has increased)** - **Increased appetite ** - **Heat intolerance (d/t metabolic rate increase) ** - **Increased gastric activity (diarrhea)** - **Increased libido** - **Smooth, warm, moist/sweaty skin ** - **Increased risk for osteoporosis ** - Diagnostics - T3, T4 - increased - TSH - Primary - low - Antibodies to TSH receptor (Graves disease) - Radioactive iodine uptake test/thyroid scan![](media/image24.png) - Ultrasound - ECG - Graves Disease S/S - Grape eyes - exophthalmos - Interventions: natural tears, lubricating drops, tape eyes shut to prevent irritation, sit up to prevent swelling, avoid contacts, use humidifiers - Goiter - Interventions: no palpating goiters, secure the airway - Treatment - Medications - **Methimazole - 1st line tx** - **Preferred over PTU b/c it's a daily pill** - Should be taken at same time every day - Don\'t stop abruptly - **Leads to reduced thyroid hormone synthesis** - **Can take several weeks to see effects ** - **Don't use if pt has liver disease or pregnant** - **Must be on birth control while taking this med** - Lower risk for hepatotoxicity - **S/E: s/s of hypothyroidism (weight, cold intolerance)** - **Report s/s infection** - **Taken for 1-1.5 yr, then slowly taper off ** - **Propylthiouracil (PTU)** - **"Puts Thyroid Underground"** - **Taken 3X/day; not as convenient** - **Report: fever, sore throat, s/s infection** - **Taken for 1-1.5 yr, then slowly taper off** - **Safe for pregnancy in 1st trimester if absolutely necessary ** - Higher risk for hepatotoxicity - **Potassium iodide (SSKI)** - **Reduced symphysis and blood flow through thyroid gland ** - **Given prior to surgery on thyroid (week before)** - **Only suppresses for about 10 days ** - **Taken after anti-thyroid meds** - **Reduces risk of bleeding during surgery** - **Can stain teeth, so drink through a straw** - **Beta blockers - propranolol** - **Controls cardiac s/s of hyperthyroidism ** - **Rapid correction of HR ** - Nonsurgical - **Diet - high in calories, protein, and carbs** - **Monitor:** - **VS** - **Cardiac rhythm** - **Reduce stimulation, provide quiet environment** - **Promote comfort (cooling measures, lubrication of eyes)** - **Drug therapy** - **Radioactive Iodine Therapy** - **Destroys the thyroid** - **Before: ** - **Must have a negative pregnancy test** - **5-7 days before: hold antithyroid meds** - **No anesthesia or conscious sedation for this** - **After: **![](media/image26.png) - **AVOID EVERYONE! - X2 wks** - **No pregnant people, crowds** - **Not same restroom (flush 3X)** - **Anything with body fluid on it should be flushed down the toilet or sealed in a ziplock bag** - **Not same food utensils** - **Not same laundry as your family ** - Surgical - **Thyroidectomy** - removal of thyroid gland - **Preop: get to a normal thyroid function** - **Antithyroid meds** - **Radioactive iodine X10 days** - **Postop:** - **Have suction and oxygen at bedside** - **Have trach tray/care kit at bedside** - **Monitor VS until stable** - **Keep neck in neutral position** - **Monitor resp. status closely** - **Report immediately any s/s of tracheal compression** - **Look for ability to swallow** - **Monitor neck dressing for bleeding** - **Monitor for low calcium levels and s/s of hypocalcemia ** - **Lifelong hormone replacement therapy will be needed if it's a total thyroidectomy** - Most critical complication: THYROID STORM - Occurs if hyperthyroidism is left untreated - Considered a medical emergency - Key S/S: - Very high fever (\>104 degrees) - Tachycardia (\>140 BPM) - Palpitations - Chest pain - SOB - Risk factors: - Untreated Graves disease - Recent surgery on thyroid or trauma to thyroid - Interventions - Supportive: - Airway and oxygenation - IV fluids to correct dehydration, correct circulation, prevent shock - Monitor - Medications to inhibit thyroid hormone synthesis and release: - Antithyroid drugs - 1st line - PTU via IV - Potassium iodine solution - Beta blocker - Glucocorticoid (inhibits T4 to T3 conversion) - Cooling measures - Tylenol - Ice packs - Avoid NSAIDs and ASA - Comfort measures - Electrolyte correction - Ventilation support (possible) - Hypothyroidism