Long-term Corticosteroid Treatment and Effects
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Questions and Answers

What is the primary action of loop diuretics in the body?

  • Blocking Na+ reabsorption at the loop of Henle (correct)
  • Decreasing the excretion of potassium
  • Increasing blood pressure
  • Enhancing Na+ reabsorption at the loop of Henle
  • Which of the following is a key consideration when administering loop diuretics?

  • Limit access to toilet facilities to reduce falls
  • Monitor potassium levels closely (correct)
  • Administer in the evening to avoid nocturia
  • Encourage intake of caffeinated beverages to promote diuresis
  • Which diuretic medication is noted for not causing allergic reactions in patients with sulfonamide allergies?

  • Torsemide (Demadex)
  • Furosemide (Lasix)
  • Ethacrynic Acid (Edecrin) (correct)
  • Bumetanide (Bumex)
  • What potential side effect arises from the use of potassium-sparing diuretics with potassium supplements?

    <p>Hyperkalemia</p> Signup and view all the answers

    What should be done before initiating thiazide diuretic therapy?

    <p>Baseline measurement of serum electrolytes</p> Signup and view all the answers

    What is a significant risk of long-term corticosteroid therapy related to the adrenal glands?

    <p>Adrenal atrophy from lack of stimulation</p> Signup and view all the answers

    Which of the following should be avoided in patients on long-term corticosteroids?

    <p>LIVE vaccines</p> Signup and view all the answers

    What is the preferred lab value for diagnosing thyroid disorders?

    <p>TSH levels</p> Signup and view all the answers

    What adverse effect can result from chronic corticosteroid use?

    <p>Suppression of the immune system</p> Signup and view all the answers

    Which substance is known to accelerate the metabolism of levothyroxine?

    <p>Phenytoin</p> Signup and view all the answers

    What can result from the use of high doses of corticosteroids over a short period?

    <p>Adrenal atrophy in 2-4 weeks</p> Signup and view all the answers

    Which of the following food items can interfere with the pharmacotherapy of hypothyroid disorders?

    <p>Cabbage</p> Signup and view all the answers

    Patients on anticoagulants should be cautious about using which natural supplement due to potential dangers?

    <p>Gingko Biloba</p> Signup and view all the answers

    What is a potential effect of Ginkgo-biloba when taken with tricyclic antidepressants?

    <p>Risk of Serotonin Syndrome</p> Signup and view all the answers

    What effect does Ginseng have on blood sugar levels?

    <p>Decreases blood sugar levels</p> Signup and view all the answers

    Which herb is known to increase appetite?

    <p>St John's Wort</p> Signup and view all the answers

    What is a potential risk of consuming large amounts of black licorice over an extended period?

    <p>Severe headaches</p> Signup and view all the answers

    Which herb is recognized for its ability to decrease anxiety and improve sleep?

    <p>Kava Kava</p> Signup and view all the answers

    What effect does turmeric have on anticoagulant medications?

    <p>Enhances their effectiveness</p> Signup and view all the answers

    What hormone does the kidney produce that helps to regulate blood pressure?

    <p>Renin</p> Signup and view all the answers

    Vitamin C is effective in enhancing which of the following?

    <p>Iron absorption</p> Signup and view all the answers

    Which herb is known to have a hormone-like effect and should be avoided during pregnancy?

    <p>Saw Palmetto</p> Signup and view all the answers

    What is the role of Vitamin K in the body?

    <p>Synthesizes clotting factors</p> Signup and view all the answers

    What is the most common cause of hyperkalemia?

    <p>Renal pathology</p> Signup and view all the answers

    Which electrolyte is primarily involved in neuromuscular function?

    <p>Magnesium</p> Signup and view all the answers

    What is the serum level defining hypomagnesemia?

    <p>Below 1.7 mmol/L</p> Signup and view all the answers

    Which of the following is NOT a common adverse effect of magnesium therapy?

    <p>Muscle rigidity</p> Signup and view all the answers

    What causes hypocalcemia?

    <p>Lack of calcium or vitamin D</p> Signup and view all the answers

    What is a key consideration for administering Levodopa?

    <p>Take on an empty stomach</p> Signup and view all the answers

    Which medication class is most effective in treating Alzheimer's disease symptoms?

    <p>Cholinesterase inhibitors</p> Signup and view all the answers

    What is a common adverse effect of Donepezil?

    <p>Nausea and vomiting</p> Signup and view all the answers

    What condition is characterized by symptoms exacerbating and remitting?

    <p>Multiple Sclerosis</p> Signup and view all the answers

    Which electrolyte's excess can lead to serious cardiac complications?

    <p>Calcium</p> Signup and view all the answers

    What is a primary goal in treating Parkinson disease?

    <p>Restore balance between dopamine and acetylcholine</p> Signup and view all the answers

    Which statement is true regarding hypokalemia treatment?

    <p>Potassium supplementation may be needed</p> Signup and view all the answers

    Which adverse effect is associated with Benztropine?

    <p>Sedation</p> Signup and view all the answers

    What could be a serious complication of excessive magnesium levels?

    <p>Neuromuscular blockade</p> Signup and view all the answers

    Study Notes

    Long-term Corticosteroid Treatment

    • Corticosteroids suppress inflammation and the immune response.
    • Long-term use can lead to adrenal atrophy.
    • Patients should avoid live vaccines.
    • Weight gain of more than 2 pounds in one day is a potential adverse effect.
    • Oral route is generally preferred for chronic conditions.
    • High doses lead to faster adrenal atrophy (2-4 weeks).

    Adverse Effects of Chronic Corticosteroids

    • Weakened immune system.
    • Reduced inflammatory responses.
    • Increased risk of stomach ulcers and bleeding.
    • Osteoporosis.
    • Behavioral changes.
    • Metabolic changes and fluid retention.

    Replacement Therapy with Glucocorticoids - Drug Interactions

    • Interactions with potassium-wasting drugs and anticholinesterase agents.
    • Avoid live vaccines.
    • Toxoids should be used with caution.
    • Insulin and oral medications like senna, cascara, and buckthorn may have increased effects while certain medications (e.g., salicylates, barbiturates, phenytoin, rifampim) have decreased effectiveness.

    Physiology of the Thyroid Gland

    • Low blood levels trigger a negative feedback loop.
    • Hypothalamus releases TRH (thyrotropin-releasing hormone).
    • Anterior Pituitary releases TSH (thyroid stimulating hormone).
    • Thyroid releases T3 and T4 hormones.

    Diagnosis of Thyroid Disorders

    • TSH is the preferred lab value.
    • Low TSH is generally considered good.
    • Primary hypothyroidism is associated with low serum T4 and elevated TSH levels.
    • Hashimoto's thyroiditis is indicated by abnormal levels of antithyroid antibodies.

    Pharmacotherapy of Hypothyroid Disorders - Drug Interactions

    • Phenytoin accelerates the metabolism of levothyroxine.

    Pharmacotherapy of Hypothyroid Disorders - Food Interactions

    • Soy flour, walnuts, and fiber-rich foods may interact with levothyroxine.
    • Foods containing calcium and iron should also be considered.

    Natural Remedies and Drug Interactions

    • Certain natural products may have similar effects as some prescription medications, potentially leading to allergic reactions.
    • Natural products should not be assumed to have fewer side effects.
    • Consideration should be given for possible drug interactions with prescription medications.
    • Natural remedies may decrease or increase the effectiveness of specific prescription drugs.

    Ginkgo Biloba and Anticoagulants

    • Ginkgo Biloba can pose risks for patients taking anticoagulants due to its flavonoid content.

    Herb-Drug Interactions (General)

    • Many herbs interact with various medications.
    • Information regarding specific interactions needs to be referenced as they vary based on the herb and medication.
    • Potential for interactions with blood thinners, blood pressure medications, and others exists.

    Principles of Fluid Imbalance

    • Fluid continuously circulates between intracellular and extracellular spaces.
    • Balance between fluid intake and output is essential for homeostasis.
    • Electrolytes (mineral ions) are crucial for body functions.
    • Imbalances in electrolytes or fluid levels can indicate underlying health conditions.

    Electrolyte Imbalances (K+, Ca2+, Mag2+)

    • Excessive or insufficient levels of potassium, calcium, or magnesium can cause various health issues.
    • Medications and medical conditions influence these electrolyte levels.
    • Monitoring electrolyte levels is essential for preventing complications.

    Pharmacotherapy of Electrolyte Imbalances

    • Treatment addresses the underlying cause and restores balance.
    • Adverse effects of medications should be reviewed for potential complications.

    Hypomagnesemia and Hypermagnesemia

    • Low or high magnesium levels have various causes and potential complications.

    Hypercalcemia and Hypocalcemia

    • High or low calcium levels have several causes and various complications
    • Medications and pathophysiology should be considered

    Pharmacotherapy of Parkinson's Disease

    • Drugs aim to balance dopamine and acetylcholine.
    • Treatment may take several weeks to show benefits.
    • Dopamine agonists increase available dopamine.

    Benztropine - Adverse Effects, Contraindications, and Interactions

    • Common effects like sedation and constipation should be considered.
    • Possible risks of conditions, such as closed-angle glaucoma or GI obstructions

    Multiple Sclerosis

    • Demyelination is the central factor characterized by inflammatory responses.
    • Characterized by periods of exacerbation and remission.
    • Muscle spasms are commonly treated with NSAIDs and muscle relaxants.
    • Spasticity, characterized by continuous muscle contraction.

    Cholinesterase Inhibitors (e.g., Donepezil)

    • Donepezil aims to raise acetylcholine levels in the brain.
    • Side effects often involve the GI system, such as nausea, vomiting, and diarrhoea.
    • Potential for muscle cramps, syncope, and other adverse affects also exist

    Liver Function Tests and Non-Pharmacologic Therapies

    • Liver function tests are conducted for individuals under treatment.
    • Non-pharmacologic therapies such as physical therapy, herbal supplements (with caution), and B-complex vitamins (specifically B6) are considered adjuncts.

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