Medication Safety and Pharmacology Review

Foundations of Safe Nursing Practice

• Importance of Error Prevention: Ultimately, safe medication practice helps prevent the next error. Errors frequently occur due to nursing environments that are busy, filled with distractions or interruptions, and the receipt of unclear orders.
• Common Causes of Errors:
  • Look-alike and sound-alike medication names (sometimes referred to as LASSA drugs).
  • Use of unsafe abbreviations.
  • Professional pace: It is critical for nurses to slow down and take their time to ensure appropriate administration.
• Foundations of Safety:
  • Verify medication orders.
  • Verify the patient using standard safety checks every time.
  • Avoid guessing: If an order seems unclear, unsafe, or unusual, the nurse must stop and clarify before giving the medication.
  • Documentation and Reporting: Safe nurses document accurately and report concerns quickly.
  • Post-Administration Monitoring: The job is not over after administration; the nurse must monitor the patient for any unexpected responses.
• Safety Culture: A strong safety culture (specifically "Number five" in the text) supports reporting instead of blame. Nurses should feel safe reporting errors and "near misses" so the team can learn. The goal is to protect the patient and improve the system, not hide mistakes.

The Six Rights of Medication Administration

• 1. Right Patient:
  • Use at least two identifiers, such as the patient's name and date of birth.
  • Never rely on room number or location, as patients can change rooms and names can sound alike.
• 2. Right Medication:
  • Compare the medication label with the provider's order and the Medication Administration Record (MAR).
  • Ensure the drug name matches exactly.
  • Remain extra careful with look-alike and sound-alike medications (e.g., $Dopamine$ vs. $Doputamine$ or $Dobutamine$; $Hydralazine$ vs. $Hydroxyzine$).
• 3. Right Dose:
  • Check the amount, the strength, and any needed calculations.
  • Check for allergies and current lab values when applicable.
• 4. Right Route:
  • Administer medications exactly as ordered (e.g., Oral, Intravenous ($IV$), Subcutaneous ($SubQ$), or Intramuscular ($IM$)).
• 5. Right Time:
  • Give medication within the allowed time frame.
  • Specific medications (antibiotics or insulin) must be given on a tight schedule.
  • Timing considerations: Avoid giving medications with a strong sedative effect early in the morning to prevent excessive drowsiness.
• 6. Right Documentation:
  • Document after the medication is given, never before.
  • Chart the medication, dose, route, time, and the patient's response.

Medication Error Prevention Habits

• Safe Habits: Slow down, read carefully, verify the order, and clarify anything that does not make sense.
• Verification Protocol: Always compare the label to the provider's order and the MAR. Do not go off memory, even if you know the patient. Do not assume a medication is correct just because it was in the drawer or pulled by another nurse.
• Unsafe Abbreviations: Prescribers are encouraged to write out units and instructions in full. Shorthand like "QD" should be replaced with "daily." Modern Electronic Health Records ($EHR$) like Epic and Avatar usually provide full instructions.
• Focus Protection: Protect focus when preparing medications. Pause and read the label at least three times. Use barcodes to scan both the patient and the medication.

High Alert Medications

• Definition: Medications that can cause serious harm if an error happens. The concern is not how often they are given, but the level of harm they cause. Small mistakes in dose, route, timing, or pump settings can be life-threatening.
• Examples of High Alert Medications:
  • Insulin.
  • Anticoagulants (e.g., Heparin infusions).
  • Opioids.
  • Intravenous electrolytes.
  • Sedatives.
  • Parenteral nutrition.
• Safety Requirements:
  • Scan barcodes.
  • Compare orders to the $EHR$.
  • Check doses, concentrations, and infusion rates.
  • Majority of the time requires a double check: Another nurse checks the medication separately, and the system may require their identifying information to proceed.
• Red Flags and Stopping Points:
  • Stop if an insulin dose does not match the patient’s blood glucose or meal status.
  • Stop if heparin or anticoagulant doses seem unusually high.
  • Stop if Potassium ($K^+$) is ordered as an $IV$ push (this can kill the patient).
  • Stop if an opioid causes excessive drowsiness, slow breathing, or low oxygenation.
• Takeaway: High Alert = High Attention.

Just Culture and Error Management

• Just Culture Framework: The goal is to protect the patient, learn from events, and improve the system rather than automatic blame. Nurses maintain accountability, but the process is a learning one rather than purely punitive.
• Components of Just Culture:
  • 1. Human Error: Unintentional mistakes (e.g., clicking the wrong option in a chart). Response: Support, correction, and learning.
  • 2. At-Risk Behavior: Taking shortcuts without fully recognizing the danger (e.g., skipping barcode scanning because the unit is busy). Response: Coaching and removing the reasons for the shortcut.
  • 3. Reckless Behavior: Knowingly ignoring a serious risk. Response: Discipline, as the risk was made clear.
• Protocol after an Error Occurs:
  • Assess the patient immediately (vitals, symptoms, harm).
  • Notify the provider and follow the chain of command.
  • Report the error or near miss; do not hide it.
  • Document objectively: Chart facts only, no guessing, no blame, and no opinions.

Questions & Discussion

• Question from Student: A student asked for clarification regarding her nursing home, where she heard that if a nurse misses a medication (e.g., a morning and afternoon dose of a drug meant to be taken three times daily), they are allowed to give them later.
• Response: The instructor emphasized thinking about protecting one's license. Nurses work too hard and spend too much money on their education to risk it. The session then moved on at $05:50$ to herbal remedies.

Herbal Remedies and Supplements

• Nursing Responsibility: Ask, Assess, and Teach. Patients may not consider herbs, teas, or powders as "medications."
• High-Risk Herbs and Interactions:
  • Saint John's Wort: Interacts with many drugs. Reduces effectiveness of oral contraceptives and Warfarin. Increases risk of Serotonin Syndrome when taken with antidepressants (Life-threatening; causes confusion, sweating, tremors, fever, and agitation).
  • Ginkgo, Garlic, Ginger, and Saw Palmetto: Major danger is increased blood risk/bleeding risk, especially if the patient is on anticoagulants or antiplatelet drugs.
  • Valerian and Kava Kava: Increases sedation/sleepiness, especially with alcohol, opioids, benzodiazepines, and sleep meds.
    • Kava Kava Specific Risk: Can cause hepatotoxicity (liver injury). Symptoms: yellow skin, dark urine, nausea, fatigue.
  • Licorice Root: Increases blood pressure, causes fluid retention, and leads to low Potassium ($K^+$). Low potassium affects heart rhythm, especially with Digoxin or diuretics.
  • Ginseng: Affects blood glucose (caution for diabetics) and blood pressure (caution for cardiac patients). Interacts with stimulants and Warfarin.
  • Hawthorn: Interacts with the heart and blood pressure medications. Watch for dizziness, low blood pressure, and changes in heart rate.

Anti-Inflammatory Medications

• Indications: Pain, inflammation, fever, arthritis symptoms, and gout.
• Major Medication Groups:
  • 1. Salicylates (Aspirin): Reduces fever/pain. Acts as an antiplatelet (prevents clotting). High bleeding risk.
    • Reye Syndrome Warning: Using Aspirin in children or teens with/after a viral illness (flu-like symptoms) creates a risk for Reye Syndrome, a rare but serious condition harming the liver and brain.
  • 2. NSAIDs (Non-Steroidal Anti-Inflammatory Drugs): Includes $Ibuprofen, Naproxen, Indomethacin, Meloxicam, Ketorolac$. Helps with pain/swelling but irritates the stomach, increases bleeding risk, and worsens kidney function.
  • 3. COX-2 Inhibitors (Salacazar / Selacosib / Selachosib):
    • Mechanism: Blocks $COX-2$ selectively (linked to pain/inflammation). Avoids blocking $COX-1$ (which protects stomach lining/platelets).
    • Risks: Not risk-free. Can still cause $GI$ bleeding, ulcers, perforations, fluid retention, high blood pressure, and serious cardiovascular ($CV$) risk.
    • Contraindications: Late pregnancy.
  • 4. Anti-Gout Medications:
    • Acute Flare Treatment: $Colchicine$ (Lowers inflammatory response to crystals). Watch for stomach toxicity: severe diarrhea, nausea, vomiting, abdominal pain.
    • Prevention (Long-term): $Allopurinol$ and $Febuxostat$ (Lower uric acid production).
      • $Allopurinol$: Watch for rash, fever, skin changes.
      • $Febuxostat$: High $CV$ risk (watch for chest pain/shortness of breath).
    • Uric Acid Removal: $Probenecid$ (Helps kidneys remove uric acid). Teaching: Stay hydrated to lower kidney stone risk.
• Nursing Priorities (Box 3 & 4 highlighted by Blue Stars):
  • Before Administration: Assess $GI$ history (ulcers), kidneys (labs like creatinine), blood thinners/steroids use, and pregnancy status.
  • Monitoring: Pain, swelling, fever, $GI$ response (abdominal pain, black/bloody stools), blood pressure, edema, urine output, new bruising, or tinnitus.
  • Teaching: Do not combine over-the-counter ($OTC$) $NSAIDs$, avoid alcohol, take exactly as directed.

Non-Opioid and Opioid Analgesics

• Analgesics: Medications that relieve pain.
• Opioid Agonists:
  • Examples: $Morphine, Hydromorphone, Codeine, Methadone, Fentanyl, Meperidine$.
  • Mechanism: Bind to opioid receptors in the Central Nervous System ($CNS$).
  • Primary Danger: Respiratory depression. Airway and breathing come first.
  • Telltale sign of toxicity: Myosis (pinpoint pupils).
• Opioid Agonists-Antagonists:
  • Examples: $Pentazocin, Nalbuphine$.
  • Details: Milder opioid effect but still requires monitoring of breathing and sedation.
• Opioid Antagonists:
  • 1. Naloxone (Narcan): Used for emergency reversal of opioid overdose (slow respiration, severe sedation).
  • 2. Naltrexone: Used for long-term blocking of opioid effects after detox. Not for emergency rescue.
• Non-Opioid Analgesics (Acetaminophen / Tylenol):
  • Mechanism: Reduces pain/fever; does not bind to opioid receptors.
  • Danger: Hepatotoxicity (liver injury). Overdose can happen accidentally by "stacking" meds (e.g., Cold/Flu meds containing $Acetaminophen$).
  • Antidote: $Acetylcysteine$. Works best if given early.
• Tramadol (Atypical Analgesic):
  • Mechanism: Weak opioid effect + affects serotonin and norepinephrine.
  • Risks: Respiratory depression, sedation, and Serotonin Syndrome.
  • Seizure Risk: Lowers the seizure threshold, making seizures more likely.
• Anti-Migraine Agents (Sumatriptan):
  • Mechanism: Narrows/squeezes cranial blood vessels to stop acute migraine. Works best at the first sign of a migraine.
  • Concerns: Cardiovascular risk due to vasoconstriction. Watch for chest pressure, tightness, shortness of breath, fainting ($syncope$), or stroke-like symptoms.
  • Contraindications: Past stroke, ischemic heart disease, or uncontrolled hypertension.

Final Recap of Nursing Functions

• Assessment: Check pain before and after. Check indications, gastric history, kidney function, and pregnancy status.
• Education: Teach patients regarding symptoms like jaundice, dark urine (liver), or tinnitus/black stools ($GI$ bleeding). Always monitor lab values like creatinine and uric acid levels. Returning from break at $07:10$.