pharm part PART 3 Loop diuretics

Diuretics Overview

Types of Diuretics

  • Loop Diuretics (e.g., Lasix)
      - Key Points to Monitor:
        - Blood pressure
        - Potassium levels
        - Heart rate (not critical)
        - BUN and creatinine levels
        - I&Os (Input and Output)
      - Possible Side Effects:
        - Hypokalemia (low potassium)
        - Dehydration
      - Administering Lasix:
        - Administer slowly, typically at a rate of 10extmg/min10 ext{mg/min}.

  • Thiazide Diuretics (e.g., Hydrochlorothiazide)
      - Electrolyte Considerations:
        - Can lead to dehydration
        - Excretes potassium, which may lead to hypokalemia
        - Lowers blood pressure

  • Potassium-Sparing Diuretics (e.g., Spironolactone)
      - Monitoring:
        - Can lead to hyperkalemia (high potassium levels)

  • Osmotic Diuretics
      - Used in emergencies to treat:
        - Increased intracranial pressure (ICP)
        - Increased intraocular pressure

Schedule for Controlled Substances

  • Schedule I: Highly addictive with no medical use
  • Schedule II: Has medical uses, potential for abuse
  • Examples of Antihypertensives:
      - Beta Blockers (e.g., Propranolol)
        - Mechanism of Action:
          - Blocks sympathetic nervous system effects, which can increase heart rate
          - Slows heart rate and dilates blood vessels
          - Lowers blood pressure and heart rate
        - Uses:
          - Anxiety management; antiarrhythmias (e.g., A fib)
      - Common Side Effects:
        - Drowsiness, fatigue, cold extremities

Additional Antihypertensive Classes

  • ACE Inhibitors (e.g., Lisinopril)
      - Adverse Effects:
        - Dry cough
        - Angioedema
  • Calcium Channel Blockers
      - Engages with myocardial contractility, leading to decreased blood pressure
      - Common Medications:
        - Amlodipine, Verapamil
  • Alpha/Beta Blockers (e.g., Carvedilol, Labetalol)
      - Promote vasodilation

Antihyperlipidemic Medications

  • Statins
      - Common Side Effects: Rhabdomyolysis (muscle breakdown)
      - Signs to Monitor:
        - Muscle aches or pains

Antianginals and Their Uses

  • Nitroglycerin (Nitro)
      - Used for treating chest pain due to decreased oxygen to the heart
      - Administration:
        - Can be administered sublingually, one every five minutes, up to three times
        - Replace every six months if stored properly
        - Do not use with erectile dysfunction medications due to severe hypotensive effects
        - Common side effect: headache

Anticoagulant Therapies

  • Warfarin (Coumadin)
      - Monitored by INR (normal range: 0.8 - 1.1, therapeutic range: 22)
      - Antidote: Vitamin K
  • Heparin
      - Monitored by PT (11-13.5 seconds) and PTT (25-30 seconds)
      - Antidote: Protamine sulfate

Carbonic Anhydrase Inhibitors

  • Class of diuretics that affect sodium and water balance
  • Used primarily for treating glaucoma by decreasing intraocular pressure

Corticosteroids in Endocrine Treatment

  • Function: Mimic hormones produced by adrenal glands; possess anti-inflammatory properties
  • Administration Forms: Oral, IV, topical, inhaled
  • Adverse Effects: Immunosuppression, hyperglycemia (increased blood glucose)
  • Common Medications: Cortisone, Hydrocortisone, Prednisone, Prednisolone
  • Patient Education: Monitor signs of hyperglycemia, adjust insulin as necessary

Antidiabetics and Monitoring

  • Monitor effectiveness via A1C (average glucose over three months)
  • Key Medications:
      - An insulin: subcutaneous administration; regular insulin can be given IV
      - Metformin: commonly causes diarrhea, typically stabilizes over time
      - Januvia: enhances insulin response and reduces glucose release from liver
  • Insulin Types and Administration Timing:
      - Short-acting (e.g., Humalog): administer within five to fifteen minutes of a meal
      - Regular insulin: administer within thirty minutes of a meal
      - Long-acting (e.g., Lantus): administer at scheduled time regardless of current blood sugar

Hormone Replacement Therapies

  • Vasopressin: Antidiuretic hormone; holds water to raise blood pressure in dehydration situations
  • Synthroid (Levothyroxine): Synthetic thyroid hormone for hypothyroidism; administer on an empty stomach first thing in the morning to maximize absorption