Transcript for:
Overview of Pharmacologic Drug Classes

Title: Microsoft Word - Unit 2 Table Winter 2025 - completed URL Source: file://pdf.16049734cfcd779f3fcc06986a3f1e1e/ Markdown Content: # Unit 2 Pharmacologic Drug Class Action Drug Examples Indication (Areas of Use) Adverse Reactions Side Effects Nursing Implications & Patient Education # Benzodiazepine ## Review Nursing ## Process on ## pg. 210-211 & ## Prototype on pg. 210 Increase the action of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) to the GABA receptors. Neuron excitability is reduced. CNS Depression Lorazepam Diazepam Alprazolam Midazolam Anxiety/Seizures/Substance abuse withdrawal (ETOH) PO/IV/IM Acute seizures (status epilepticus) PO/PR Anxiety - PO Conscious Sedation for minor procedures - IV Hypotension Respiratory depression Dependency Seizures Depression Drowsiness Decreased VS Dizziness Memory Impairment Blurred Vision Headache Close monitoring of V/S, Resp. Status, and LOC Complete drug history both prescribed and OTC/herbal (page 211); Safety Precautions Cautions/Contraindications : Older adults; Patients with renal impairment; Patients on other CNS depressants; Pregnant women Patients with sleep apnea; respiratory depression, hypotension, alcohol intoxication, or sedation; Depression. Patient Teaching (Pages 210-211) : Change positions slowly. Safety precautions. No driving. Avoid ETOH or other CNS depressants (OTC herbs or medications). Report a decrease in blood pressure, or excessive dizziness and drowsiness. Report any plans for pregnancy or if you become pregnant. Do not discontinue abruptly/taper if coming off. Not indicated for long- term use. ## Non-Benzodiazepine ## Review Prototype on ## pg. 212 & Nursing ## Process on ## pg. 212-213 CNS depression, neurotransmitter inhibition CNS Depression Zolpidem Tartrate Insomnia Physiological dependency Vivid Dreams/Nightmares Respiratory Depression Drowsiness/ Hangover Dizziness Memory impairment Complex Sleep Behaviors/Amnesia Cautions/Contraindications: Renal impairment; Liver impairment; Benzodiazepine allergy; Pregnant women women in general; Safety precautions. Older adults; Children; Patients with depression Patient Teaching (Page 213): Avoid ETOH or other CNS depressants. Educated RE complex sleep behavior instruct family to monitor. Administer at bedtime ensure you allow 6-8 hrs. for sleep. If taking for a long period of time do not discontinue abruptly. Encourage sleep hygiene no caffeine, limiting screentime, avoiding stimulating activities, develop a sleep routine. Do not take more than more than prescribed. Indicated for short-term use only (<10 days). Safety precautions. # Local Anesthetics ## Review Nursing ## Process on pg. 217 Local anesthetics block pain at the site where the drug is administered by preventing conduction of nerve impulses. Blocks Pain Sensations Lidocaine Hydrochloride Topical Anesthesia, infiltrate or nerve block Local skin reactions Prolonged loss of sensation Monitor for loss of sensation. Assess for tissue damage if immobile. Patient Teaching : May feel numb. Remove patch after 12 hours. # Spinal Anesthesia ## Review Nursing ## Process on pg. 217 Local anesthetics block pain at the site where the drug is administered by preventing conduction of nerve impulses. CNS Depression Lidocaine Hydrochloride Epidural, and spinal anesthesia Hypotension Respiratory Depression (Spinal & Epidural) Headache (Spinal & Epidural) Anticipate loss of sensation. Monitor vital signs , urine output and LOC Caution : Narcotic Administration or other CNS Depressants Pharmacologic Drug Class Action Drug Examples Indication (Areas of Use) Adverse Reactions Side Effects Nursing Implications & Patient Education # NSAID ## Review Prototype on ## pg. 286 & Nursing ## Process on pg. 287 COX-1: Stops bleeding Protects Stomach COX-2: Causes pain and inflammation (vasodilation ) Inhibit or block both COX-1 and COX-2. Ibuprofen (non-selective) Anti-inflammatory Fever Reduction Pain Control Tinnitus Bleeding GI/Ulcers Anemia Anaphylaxis Renal Failure GI Upset Dizziness Bruising Peripheral Edema > Monitor vital signs and for signs of bleeding. > Monitor H/H. > Complete drug history both prescribed and OTC/herbal. > Pain assessment. > Cautions/Contraindications: > Bleeding disorders, peptic ulcer disease; > Hepatic or Renal Impairment; Pregnancy > Asthma; Patients on anticoagulant therapy; 5Gs > Patient Teaching (Page 287): > Take w/food to decrease GI upset. Avoid 5Gs; ASA; Anticoagulants. > Report s/s of GI bleeding tarry stools, coffee-ground emesis, severe GI > pain. Report bleeding gums, excessive bruising, frequent nose bleeds, > hematuria. Bleeding prevention soft toothbrush; electric razor. No > ETOH. Avoid with hx of GI bleed. Report edema elevate legs or use > compression stocking to prevent. Do not take if pregnant. Avoid during > menstruation to minimize excessive bleeding. Notify provider prior to > surgery. Increase fluid intake. Do not take if you have kidney failure. # NSAID ## Review Prototype ## pg. 288 COX-2: Causes pain and inflammation (vasodilation ) Inhibits COX-2 only (Vasoconstriction) Celecoxib (selective) Used to treat Osteoarthritis, Rheumatoid, Moderate to severe pain Bleeding Hypertension Stroke/MI Nephrotoxicity Headache Dizziness GI Upset Peripheral Edema Monitor vital signs Cautions/Contraindications: Patients with chronic hepatic or renal impairment; Patients with cardiac history; Patients on anticoagulant therapy Patient Teaching : Report edema and BP monitoring. # Salicylates ## Review Prototype on ## pg. 284 & Nursing ## process on ## pg. 285 Inhibits prostaglandin synthesis, hypothalamic heat regulator center, and platelet aggregation Decreases inflammation, fevers, pain, and blood clotting. Aspirin Pain Relief Fever Reduction Block Inflammation Antiplatelet Bleeding Hearing loss Tinnitus GI ulceration Reyes Syndrome (children) Bruising GI Upset Drowsiness Headache Monitor for bleeding and salicylism Cautions/Contraindications: Patients on antiplatelet or anticoagulant therapy; 5Gs, Children under the age of 16 (Do not give for fever reduction) Reyes Syndrome ; Pregnant women (last trimester); Bleeding disorders. Patient Teaching (Page 285) : Report ringing in the ears s/s salicylism. Bleeding prevention. s/s of GI bleeding or excessive bleeding. Avoiding 5 Gs. Stop prior to surgery. Avoid if taking anticoagulants. Do not combine w/NSAIDs read OTC labels. Avoid during pregnancy and menstruation. Do not give to children. # Anti-Gout ## Review Nursing ## Process on pg. 293 Increases uric acid excretion in the urine and block uric acid production Prevents uric acid crystal formation in the joints. Allopurinol Prophylactic treatment of gout & hyperuricemia Elevated liver enzymes Elevated BUN and Creatinine Stevens-Johnsons Syndrome (SJS) GI Upset ABD Discomfort Monitor patients with renal disease, and hepatic disorder. Uric Acid levels . Pain assessment . (Monitor ALT, AST, Liver enzymes, BUN/Crt & UOP) Patient Teaching (Page 293): Educate RE dietary restriction (avoid purines shellfish, organ meats, ETOH, etc.). Increase fluid intake. Take w/food to decrease GI upset. Take daily as prescribed (lifetime therapy). s/s kidney failure decreasing UOP. s/s liver failure jaundice, itchy skin or rash, ABD pain and tenderness. Report skin changes. Yearly eye exams vision changes. # Non-Opioid ## Analgesic ## Review Prototype on ## pg. 298 & Nursing ## Process pg. 299 Weakly inhibits prostaglandin synthesis, which decreases pain sensation. No impact on inflammation or coagulation. Decreases temperature and pain. Acetaminophen Used to treat pain and fever. Oliguria Elevated Liver Enzymes Hepatotoxicity N/V Monitor for s/s liver failure, LFTs, & dosing. Cautions/Contraindications: Patients with liver disease; a history of alcoholism; Patients with renal impairment When acetaminophen toxicity occurs: Acetylcysteine is the antidote . Patient Teaching (Page 299): Dosing guidelines 4 grams /day if healthy; 2 grams /day if frail, elderly or taking numerous others . Avoid ETOH. Read labels of OTC meds . Notify the prescriber if pain persists for longer than 10 days. s/s of hepatotoxicity See above . Report changes in UOP. Pharmacologic Drug Class Action Drug Examples Indication (Areas of Use) Adverse Reactions Side Effects Nursing Implications & Patient Education # Opioids ## Review Prototype on ## pg. 301 & Nursing ## process pg. 302 Depression of the CNS; depression of pain impulses by binding with opiate receptors in the CNS CNS Depression Morphine Used to treat moderate to severe pain Hypotension Respiratory depression Dependency Hypotension Decreased RR Drowsiness Dizziness Sedation GI Upset Constipation Blurred Vision Confusion Urinary Retention Pruritis Monitor for tolerance vs dependence. Pupil changes. Close monitoring of Respiratory Status and vitals and LOC ; Monitoring GI and GU Function (UOP); Pain assessment timing; PCA Management; Naloxone Availability Safety Precautions Cautions/Contraindications: Patients with CNS depression Increased ICP; Elderly Confusion and sedation; Respiratory depression, sleep apnea and renal or hepatic impairment; Breastfeeding and pregnancy Patient Teaching (Page 302) : Constipation management increase fluids, stool softener. Do driving. Do not combine with ETOH or other CNS depressants. Educate RE need to take prior to the pain becoming severe. Educate on risks with long-term use: tolerance, addiction, bowel changes or urinary pattern changes. Report changes in breathing and blurred vision. Do not discontinue abruptly. Take w/food to decrease GI upset. Non- pharmacological strategies for pain management. Monitor BP. Change positions slowly. Do not take if pregnant or breastfeeding . # Opioid # Antagonist ## Pg. 306 Displaces opioids from receptor sites. Reverses the effects of opioids. Naloxone Used to treat opioid overdose or reverse opioid depression. Tachycardia Hypertension Bleeding GI Upset Return of Pain **Available via multiple routes** Monitor for bleeding, the return of pain, and withdrawal symptoms. Monitor for narcotic abstinence syndrome : HTN; Tachycardia; Increased Pain. Consider the need for redosing. ***Naloxone is the antidote for opioid overdose*** Patient Teaching: Anticipate the return of pain. Nonpharmacologic pain management. # Anti-migraine ## 5-HT receptor ## Agonist ## Review Prototype ## pg. 309 Causes vasoconstriction of cranial arteries to relieve migraine attacks. Promotes vessel constriction. Sumatriptan Used to treat migraines or cluster headaches BP Changes Bradycardia Elevated hepatic enzymes, Thromboembolism, Seizures; CVA; MI Hearing Loss N/V Flushing Drowsiness Dizziness Paresthesia Fatigue Monitor Vitals and s/s migraines; Complete medication history and medical exam prior to prescribing. Cautions: Hypersensitivity, CAD, peripheral vascular disease, hypertension, cerebrovascular disease; Renal or hepatic dysfunction, obesity, DM, smoking , seizures, older adults Interactions: St. Johns Wort and SSRI Patient Teaching : Take at the first sign of a migraine or when you develop an aura (sensitivity to light or sound, GI upset). Monitor BP and HR. Keep migraine diary. Avoid triggers caffeine, dehydration, bright lights, strong smells; STRESS; lack of sleep , specific foods, skipping meals, etc. Report increasing need for use. Report changes in hearing.