PERSONAL USE ONLY
| Problem | Description | Key Causes / Notes |
|---|---|---|
| Constipation | Dry, hard-to-pass stool; sensation of incomplete emptying | Narcotics · Low fiber · Low fluid · Immobility → Tx: high-fiber diet |
| Paralytic Ileus | Bowel obstruction from lack of intestinal activity | Post-surgery · Anesthesia/meds · Electrolyte imbalance · Infection |
| Diarrhea | Loose, watery stools | Antibiotics (kill healthy GI flora) · Viral/bacterial infection · IBD · Crohn's · Ulcerative colitis |
| Flatulence | Abdominal distension from gas | Instruct patient to ambulate to help pass gas · Return-flow enema for post-op flatus |
| Hemorrhoids | Swollen/inflamed rectal blood vessels → bloody stools, pain with defecation | Causes: pregnancy, heart/liver failure · Tx: ointment, gentle wiping, sitz bath, ice pack |
| Incontinence | Inability to control bowel movements | Monitor skin integrity; keep area clean and dry |
| Type | How it works | Key Notes |
|---|---|---|
| Tap water (hypotonic) | Stimulates evacuation | ⚠️ NEVER repeated — risk of water toxicity (fluid shift into interstitial spaces) |
| Soapsuds | Irritant → promotes peristalsis; pure castile soap in tap water or NS | Use cautiously: older adults & pregnant (↑ risk electrolyte imbalance & mucosa damage) |
| Normal saline ⭐ | Volume stimulates peristalsis | Safest — isotonic, equal osmotic pressure |
| Low-volume hypertonic | Commercially prepared; draws fluid into colon | ⚠️ Not for infants or dehydrated clients |
| Oil retention ⚡ | Lubricates rectum/colon, softens stool | Retain ≥ 30 minutes |
| Medicated | Contains antibiotics or anthelmintics | Retain 1–3 hours |
| Return-flow (flush) ⚡ | Expels flatus, stimulates peristalsis | Post-op abdominal distension/flatus |
🎯 High-Yield Brain Structures
🎯 Sleep Stages — Most-Tested
| Stage | Type | % of Sleep | Key Facts |
|---|---|---|---|
| Wake | NREM | — | Alpha (8–12 Hz) & Beta (12–30 Hz) waves. Eyes closed, relaxed. |
| Stage 1 | NREM | ~5% | Lightest sleep. Easily awakened. Lasts 1–5 min. Muscle twitching possible. |
| Stage 2 | NREM | ~50% | Sleep spindles & K-complexes. HR & temp decrease. Older adults spend MORE time here → frequent waking. |
| Stage 3 ⭐ | NREM | ~15% | Deepest sleep. Delta waves. Immune system strengthens. Muscles/tissues/bones repair. Awakening → mental cloudiness 30–60 min. Lowest pulse & RR. |
| REM ⭐ | REM | 20–25% | Dreaming stage. Beta waves (looks awake on EEG). Muscles atonic (can't act out dreams). Irregular breathing, elevated HR. Begins ~90 min after sleep onset. Older adults have fewer REM cycles. |
⚠️ Sleep Deprivation Effects
💊 Pharmacologic — Know Adverse Effects
| Class | Examples | Key Adverse Effects / Notes |
|---|---|---|
| Nonbenzodiazepine hypnotics ⭐ | Zolpidem, Zaleplon, Eszopiclone (z-drugs) | Most commonly prescribed. Monitor for hallucinations, gastric discomfort, memory loss. Abuse potential. |
| Benzodiazepines (GABA agonists) | Alprazolam, Clonazepam, Lorazepam | Retrograde amnesia, drowsiness, muscle relaxation. Use cautiously in older adults (↓ liver/kidney). NOT for long-term use — physical dependence. |
| Melatonin ⭐ | Controlled-release melatonin | First-line for older adults & all ages. Non-habit forming, cost-effective, few adverse effects. |
| OTC (Antihistamines) | Doxylamine, Diphenhydramine | Urinary retention, dry mouth, daytime drowsiness, visual disturbances, constipation. |
🌿 Nonpharmacologic Interventions
🏥 Hospital Sleep Promotion (Sensory Overload Prevention)
🎯 Nursing Actions to Promote Comfort
🎯 Health History — What to Collect
⚖️ Risk Factors for Surgical Complications
| Risk Factor | Why It Matters |
|---|---|
| Type 1 & 2 DM | Poor wound healing, infection risk |
| Smoking | ↑ blood clots, slower healing, ↑ infection |
| Corticosteroids | Impair wound healing, ↑ dehiscence risk |
| Age ≥65 | ↑ delirium, POCD, comorbidities |
| Obesity (BMI >30) | DVT/PE risk, difficult intubation, ↓ O₂ |
| Anticholinergics + Dementia | ↑ postoperative delirium |
📝 Informed Consent — Roles
✅ Who CAN Sign · ✗ Who CANNOT
🎯 Surgical Team Roles
⏱️ Time-Out ⭐
💉 Anesthesia Types
| Type | What It Does | Examples |
|---|---|---|
| Local | Small area, client awake | Lidocaine, benzocaine |
| Regional ⭐ | Temp loss of feeling in one area, client awake or sedated. Arm, leg, abd sx. | Spinal/epidural block |
| General | CNS depressed, unconscious. CV and respiratory monitoring required. | — |
| Moderate Sedation | Drowsy, pain-free, arousable, follows commands. No breathing support needed. | Diazepam, lorazepam, midazolam |
🧼 Skin Prep Sequence ⭐
🔥 Malignant Hyperthermia ⭐
✅ Post-Op Nursing Interventions
💊 Pain Management
💧 Fluid Imbalances
| Layer | What's in it | Key Function |
|---|---|---|
| Epidermis | Keratinocytes, melanocytes, Merkel cells, Langerhans cells | Outer barrier — protects from water loss, pathogens, UV |
| Dermis ⭐ | Collagen, elastin, fibroblasts, blood vessels, lymphatics | Blood vessels nourish the epidermis. Fibroblasts promote healing. Strength & elasticity. |
| Subcutaneous | Adipose tissue, blood vessels, nerves | Insulation, shock absorption, thermoregulation, sensation |
🔬 Key Cells — Know These
🎯 Staging — Most Tested
| Stage | Tissue | Key Feature |
|---|---|---|
| Stage 1 | Skin intact | Non-blanchable erythema. Dressing: film or barrier cream. |
| Stage 2 | Partial-thickness | Pink/red wound bed or ruptured serum blister. NO slough present. No deeper tissue visible. |
| Stage 3 ⭐ | Full-thickness | Visible adipose. Granulation tissue present. No bone/tendon/muscle. May have slough/tunneling. |
| Stage 4 ⭐ | Full-thickness | Bone, tendon, muscle, or cartilage visible. Undermining/tunneling present. |
| Unstageable | Obscured | Covered by slough or eschar. Once removed = reveals Stage 3 or 4. |
| DTPI | Deep tissue | Non-blanchable deep red / maroon / purple. Skin may be intact. |
📊 Braden Scale
🛡️ Prevention Interventions
| Dressing | Used For | Key Note ⭐ |
|---|---|---|
| Film (Transparent) | Stage 1, superficial, minimal exudate | Visualize wound without removal. NOT for wounds with significant exudate. |
| Hydrocolloid | Small abrasions, Stage 2, post-op | Promotes granulation. Do NOT use with infection, tunneling, undermining. |
| Alginate ⭐ | Moderate–high exudate | Requires secondary dressing. Made from seaweed. High absorbency. |
| Foam | Mild–moderate exudate | Silicone foam on sacrum within 24 hr of admission prevents HAPIs. |
| Hydrogel ⭐ | Dry wounds, necrosis/eschar, suspected infection | Contains water — adds moisture to dry wounds. Soothing, minimal trauma. |
| Hydrofiber | Moderate–high exudate | Less maceration than alginate. Needs secondary dressing. |
| Barrier Cream | Stage 1, incontinence-prone skin | Protects from moisture/pressure/shear. |
💧 Drainage Types
🔄 Wound Healing Types
⏱️ Phases of Wound Healing ⭐
🔬 TIME Wound Assessment
🧠 DIDN'T HEAL — Delayed Healing Factors
⚠️ Wound Complications
🚰 Wound Drains