Nurses Note

Dahlia Care Guide 🌸
☀️ Light
Needs 6–8 hours of direct sunlight every day.
In very hot weather, light afternoon shade is beneficial.
💧 Watering
Water deeply 2–3 times a week.
Keep the soil moist but never waterlogged.
Water at the base to help prevent fungal diseases.
🌱 Soil
Use rich, well-drained soil with compost.
Ideal soil pH: 6.5–7.0.
🌼 Feeding
Feed every 2–3 weeks with a low-nitrogen, high-potassium fertilizer.
Too much nitrogen produces leaves instead of flowers.
✂️ Pruning
Remove spent flowers (deadheading) regularly.
Pinch out the growing tip when the plant is 20–30 cm (8–12 inches) tall to encourage bushier growth and more blooms.
🪴 Staking
Tall varieties should be supported with a stake to prevent stems from snapping in wind.
🐛 Pests
Watch for aphids, slugs, earwigs, spider mites, and powdery mildew.
Inspect plants regularly and treat early if needed.
❄️ Winter Care
UK: After the first frost blackens the foliage, cut stems to about 10–15 cm (4–6 inches).
Lift the tubers, dry them, and store them in a cool, frost-free place until spring.
In mild areas, tubers can sometimes be left in the ground with a thick mulch, but lifting them is safer.
🌸 Blooming Tips
Give plenty of sunshine.
Deadhead often.
Feed regularly.
Water consistently during dry spells.
Pick flowers frequently to encourage continuous blooming.

Zinnia Care
🌸 Bright flowers in red, pink, orange, yellow, white, purple, and mixed colours.

ARDS (Acute Respiratory Distress Syndrome) – Nursing Quick Notes

❤️ Definition
ARDS is a life-threatening inflammatory lung condition causing increased permeability of the alveolar-capillary membrane, leading to non-cardiogenic pulmonary oedema, severe hypoxaemia, and reduced lung compliance.

⚠️ Causes
Sepsis (most common)
Pneumonia
Aspiration of gastric contents
Major trauma
Acute pancreatitis
Near drowning
Smoke or toxic gas inhalation
Massive blood transfusion (TRALI)
Severe COVID-19 or viral infections

🔬 Pathophysiology
Lung injury triggers inflammation.
Alveolar-capillary membrane becomes leaky.
Protein-rich fluid enters alveoli.
Surfactant is lost → alveolar collapse (atelectasis).
Gas exchange decreases.
Severe hypoxaemia develops despite oxygen therapy.

🚩 Signs & Symptoms
Severe shortness of breath
Rapid breathing (tachypnoea)
Low oxygen saturation
Cyanosis
Crackles on auscultation
Use of accessory muscles
Restlessness or confusion
Hypotension (late stage)

🩺 Diagnosis
ABG: PaO₂/FiO₂ ratio ≤300
Chest X-ray: Bilateral diffuse infiltrates ("white lungs")
CT chest if needed
ECG/Echocardiogram to exclude heart failure
Blood tests and cultures to identify cause

📋 Berlin Criteria
Onset within 1 week of known insult
Bilateral opacities on chest imaging
Respiratory failure not explained by cardiac failure/fluid overload
Oxygenation:
Mild: PaO₂/FiO₂ 201–300
Moderate: 101–200
Severe: ≤100 (with PEEP ≥5 cmH₂O)

💊 Treatment
Treat the underlying cause
Oxygen therapy
Mechanical ventilation (lung-protective strategy)
Low tidal volume (4–6 mL/kg predicted body weight)
Appropriate PEEP
Prone positioning (12–16 hours/day for severe ARDS)
Conservative fluid management
Sedation ± neuromuscular blockade if indicated
Nutritional support
ECMO for selected severe cases

👩‍⚕️ Nursing Management
Continuous respiratory assessment
Monitor SpO₂ and ABGs
Maintain airway patency
Suction only when required
Position patient appropriately (prone if indicated)
Monitor ventilator settings and alarms
Strict fluid balance and urine output
Prevent pressure injuries
Oral care and VAP prevention bundle
DVT and stress ulcer prophylaxis
Provide reassurance and family support

⚠️ Complications
Respiratory failure
Ventilator-associated pneumonia (VAP)
Pneumothorax
Pulmonary fibrosis
Multi-organ failure
Death

💡 Nursing Pearls
ARDS is non-cardiogenic pulmonary oedema.
Sepsis is the most common cause.
Hypoxaemia is often refractory to oxygen therapy.
Low tidal volume ventilation reduces ventilator-induced lung injury.
Early prone positioning improves oxygenation in severe ARDS.
Prompt treatment of the underlying cause significantly improves outcomes.

Cerebrospinal Fluid (CSF) Analysis – Nursing Quick Notes

🧠 Definition
Cerebrospinal fluid (CSF) analysis is the laboratory examination of CSF collected by lumbar puncture (LP) to diagnose disorders affecting the brain and spinal cord.

🎯 Purpose
Diagnose meningitis and encephalitis
Detect subarachnoid haemorrhage (SAH)
Diagnose multiple sclerosis (MS)
Detect CNS malignancy
Monitor response to treatment

🧪 Normal CSF Values (Adults)
Appearance: Clear, colourless
Opening pressure: 10–20 cm H₂O
Volume collected: 3–5 mL
Protein: 15–45 mg/dL
Glucose: 50–80 mg/dL (≈ two-thirds of blood glucose)
WBC: 0–5 cells/µL (mainly lymphocytes)
RBC: 0 cells/µL
Gram stain/Culture: Negative

🔬 Routine CSF Tests
Appearance (colour & clarity)
Opening pressure
Cell count & differential
Protein
Glucose
Chloride
Gram stain & culture
Cytology (if malignancy suspected)
PCR, AFB stain, oligoclonal bands (when indicated)

📊 CSF Findings in Common Conditions

🦠 Bacterial Meningitis
Turbid/purulent CSF
↑↑ Opening pressure
↑↑ Neutrophils
↑ Protein
↓ Glucose
Gram stain/culture usually positive

🦠 Viral Meningitis
Clear or slightly hazy
Normal or mildly ↑ pressure
↑ Lymphocytes
Normal glucose
Normal or mildly ↑ protein
Culture usually negative

🦠 Tuberculous Meningitis
Clear or opalescent
↑ Opening pressure
↑ Lymphocytes
↑ Protein
↓ Glucose
AFB/PCR may be positive

🩸 Subarachnoid Haemorrhage (SAH)
Xanthochromic (yellow) or blood-stained CSF
↑ RBC count
↑ Opening pressure
Slightly ↑ protein
Glucose usually normal

👩‍⚕️ Nursing Considerations
Label and send CSF specimens immediately.
Maintain aseptic technique during collection.
Monitor neurological observations after lumbar puncture.
Observe for CSF leak and post-LP headache.
Report abnormal findings urgently.

💡 Nursing Pearl
Always interpret CSF results together with the patient's history, symptoms, examination findings, blood tests, and imaging. No single CSF result confirms a diagnosis.

Lumbar Puncture
Lumbar Puncture (LP) – Nursing Quick Notes

🧠 Definition
A lumbar puncture (spinal tap) is a procedure in which a sterile needle is inserted into the subarachnoid space (usually L3–L4 or L4–L5) to collect cerebrospinal fluid (CSF) or administer medications.

📌 Indications
Suspected meningitis or encephalitis
Subarachnoid haemorrhage (if CT is negative)
Multiple sclerosis
Guillain–Barré syndrome
Measure CSF pressure
Intrathecal chemotherapy or spinal anaesthesia

⚠️ Contraindications
Raised intracranial pressure (without imaging)
Local skin infection at the puncture site
Bleeding disorders or anticoagulant therapy
Spinal deformity (relative)

🩺 Equipment
Sterile lumbar puncture tray
Spinal needle
Antiseptic solution
Sterile gloves and drapes
Local anaesthetic
CSF collection tubes (usually 4)
Dressing

👤 Patient Position
Lateral side-lying with knees to chest or
Sitting, leaning forward

💧 Normal CSF Findings
Appearance: Clear and colourless
Opening pressure: 10–20 cm H₂O
Protein: 15–45 mg/dL
Glucose: 50–80 mg/dL (about two-thirds of blood glucose)
WBC: 0–5 cells/µL

👩‍⚕️ Nursing Care
Before
Explain the procedure and obtain consent
Check coagulation status and medications
Ensure required investigations are completed
During
Maintain strict aseptic technique
Help the patient remain still
Monitor comfort and vital signs
After
Monitor neurological observations
Encourage fluids if appropriate
Observe puncture site for leakage or bleeding
Watch for post-lumbar puncture headache
Report fever, severe headache, or neurological changes immediately

🚨 Complications
Post-dural puncture headache
CSF leak
Infection
Bleeding/haematoma
Nerve irritation
Brain herniation (rare but life-threatening if raised ICP is present)

Acidosis vs Alkalosis

Acidosis (Nursing Quick Notes)

❤️ Definition
Acidosis is a condition in which the blood pH falls below 7.35 due to excess acid or loss of bicarbonate.

📌 Types
Respiratory Acidosis – Caused by CO₂ retention due to hypoventilation.
Metabolic Acidosis – Caused by excess acid production or bicarbonate loss.

⚠️ Common Causes
Respiratory
COPD
Severe asthma
Respiratory depression (opioids/sedatives)
Neuromuscular disorders
Airway obstruction
Metabolic
Diabetic ketoacidosis (DKA)
Lactic acidosis
Kidney failure
Severe diarrhoea
Poisoning (e.g., methanol, ethylene glycol)

🩺 Signs & Symptoms
Headache
Confusion
Drowsiness
Fatigue
Shortness of breath
Deep, rapid (Kussmaul) breathing in metabolic acidosis
Warm, flushed skin
Nausea and vomiting
Cardiac arrhythmias

🧪 ABG Findings
pH: < 7.35
Respiratory acidosis: ↑ PaCO₂ (>45 mmHg)
Metabolic acidosis: ↓ HCO₃⁻ ( 7.45
Respiratory alkalosis: ↓ PaCO₂ (26 mmol/L)

🔍 Diagnosis

Arterial Blood Gas (ABG)
Urea & Electrolytes (U&E)
Serum potassium and chloride
ECG
Chest X-ray (if respiratory cause suspected)
Assess underlying cause (vomiting, medications, hyperventilation)

💊 Treatment
Treat the underlying cause
Encourage slow, controlled breathing if anxiety-related
Replace fluids and electrolytes
Potassium replacement if hypokalaemia is present
Stop or adjust causative medications (e.g., diuretics) as prescribed
Antiemetics for persistent vomiting
Oxygen only if clinically indicated

⚡ Complications
Cardiac arrhythmias
Severe hypokalaemia
Tetany
Seizures
Reduced cerebral blood flow
Syncope
Respiratory muscle weakness (severe cases)

💡 Easy Memory
Alkalosis = Alkali ↑ → pH ↑
Respiratory = CO₂ ↓
Metabolic = HCO₃⁻ ↑

Cholecystitis vs Cholelithiasis

🟢 Cholelithiasis (Gallstones)

Definition Presence of stones in the gallbladder. May be asymptomatic or cause biliary colic.

Causes

Cholesterol stones (most common)
Pigment stones
Obesity
High-fat diet
Rapid weight loss
Pregnancy
Family history

Signs & Symptoms

Right upper quadrant (RUQ) pain after fatty meals
Pain radiating to right shoulder/back
Nausea and vomiting
Bloating
Often no fever if uncomplicated

Diagnosis

Ultrasound (first-line)
Liver function tests (LFTs)
MRCP if bile duct stones suspected

Treatment

Pain relief
Low-fat diet
Laparoscopic cholecystectomy if symptomatic
ERCP if common bile duct stones are present

🔴 Cholecystitis (Inflamed Gallbladder)

Definition Inflammation of the gallbladder, usually caused by a gallstone blocking the cystic duct.

Causes

Gallstone obstruction (most common)
Infection
Trauma or critical illness (acalculous cholecystitis)

Signs & Symptoms

Severe, constant RUQ pain (>6 hours)
Fever
Nausea and vomiting
Murphy's sign positive
Jaundice (occasionally)

Diagnosis

Ultrasound (thickened gallbladder wall, stones)
Raised WBC and CRP
LFTs
HIDA scan if diagnosis is uncertain

Treatment

NBM (nil by mouth)
IV fluids
IV antibiotics
Pain relief
Early laparoscopic cholecystectomy (usually within 72 hours if appropriate)

Type of Shock

Types of Shock (Nursing Quick Notes)
1. Hypovolaemic Shock 💧
Definition: Loss of circulating blood or body fluids leading to inadequate tissue perfusion.

Causes:

Haemorrhage
Severe dehydration
Burns
Vomiting/diarrhoea

Key Signs:

Tachycardia
Hypotension
Cold, clammy skin
Weak pulse
Reduced urine output

2. Cardiogenic Shock ❤️

Definition: Failure of the heart to pump enough blood.

Causes:

Acute myocardial infarction (most common)
Severe heart failure
Cardiomyopathy
Arrhythmias

Key Signs:

Chest pain
Pulmonary oedema
Raised JVP
Cold, clammy skin
Hypotension

3. Distributive Shock 🌡️

Blood vessels dilate, causing poor tissue perfusion.

a) Septic Shock

Cause: Severe infection causing systemic inflammation.
Signs:

Fever or hypothermia
Warm skin initially, then cool
Tachycardia
Hypotension
Altered mental state

b) Anaphylactic Shock

Cause: Severe allergic reaction.

Signs:

Airway swelling
Wheeze
Urticaria
Hypotension
Difficulty breathing

c) Neurogenic Shock

Cause: Spinal cord injury or disruption of sympathetic nerves.

Signs:
Hypotension
Bradycardia
Warm, dry skin
Loss of temperature control

4. Obstructive Shock 🚫

Definition: Physical obstruction prevents adequate blood flow.

Causes:
Pulmonary embolism
Cardiac tamponade
Tension pneumothorax

Key Signs:
Hypotension
Distended neck veins
Tachycardia
Severe dyspnoea
Chest pain
Common Signs of Shock
Hypotension
Tachycardia (except neurogenic shock)
Rapid breathing
Altered consciousness
Reduced urine output
Pale or mottled skin
Delayed capillary refill

Initial Management (ABCDE)
A: Secure airway
B: Give high-flow oxygen
C: IV access, fluids (if appropriate), control bleeding
D: Assess neurological status
E: Expose patient, treat underlying cause, monitor ECG, urine output and vital signs

Ventricular Fibrillation

Ventricular Fibrillation (VF) – Nursing Quick Notes

❤️ Definition
Ventricular Fibrillation (VF) is a life-threatening cardiac arrhythmia in which the ventricles quiver chaotically instead of contracting effectively. This results in no cardiac output, causing cardiac arrest if not treated immediately.

⚠️ Causes
Acute myocardial infarction (most common)
Coronary artery disease
Cardiomyopathy
Electrolyte imbalance (↓K⁺, ↓Mg²⁺)
Electric shock
Drug toxicity (e.g., digoxin)
Severe hypoxia or acidosis
Long QT syndrome

🚩 Risk Factors
Previous MI
Heart failure
Coronary artery disease
Hypertension
Smoking
Diabetes
Electrolyte abnormalities
Family history of sudden cardiac death

🩺 Signs & Symptoms
Sudden collapse
Unconsciousness
No pulse
No breathing or gasping
Dilated pupils (late sign)
Cyanosis

📊 ECG Features
Chaotic, irregular waveform
No identifiable P waves
No QRS complexes
No T waves
Irregular amplitude and frequency
🔬 Diagnosis
Clinical assessment (unresponsive, pulseless)
ECG confirmation
Identify reversible causes (Hs & Ts) after ROSC

🚑 Emergency Treatment
Call emergency response team
Start high-quality CPR immediately
Attach defibrillator/AED
Immediate unsynchronised defibrillation
Continue CPR for 2 minutes between shocks
Adrenaline (epinephrine) as per ALS protocol
Amiodarone for refractory VF
Treat reversible causes (Hs & Ts)

👩‍⚕️ Nursing Management
Activate cardiac arrest protocol
Ensure effective CPR
Prepare and assist with defibrillation
Administer emergency medications
Monitor ECG and vital signs after ROSC
Maintain airway and oxygenation
Document events accurately
Support patient and family after resuscitation

⚠️ Complications
Cardiac arrest
Brain injury from hypoxia
Multi-organ failure
Recurrent arrhythmias
Sudden cardiac death

🛡️ Prevention
Control cardiovascular risk factors
Treat coronary artery disease
Correct electrolyte imbalances
Take prescribed antiarrhythmic medications
Consider an ICD (Implantable Cardioverter Defibrillator) in high-risk patients
Regular cardiac follow-up

💡 Nursing Pearl
VF is a shockable rhythm. Immediate CPR and early defibrillation are the most important interventions and offer the best chance of survival.

Complete Heart Block
Complete Heart Block (Third-Degree AV Block) – Nursing Quick Notes

❤️ Definition
Complete Heart Block (CHB), also called Third-Degree Atrioventricular (AV) Block, is a life-threatening cardiac conduction disorder in which no electrical impulses pass from the atria to the ventricles. The atria and ventricles beat independently (AV dissociation).

⚡ Pathophysiology
SA node generates normal atrial impulses.
AV node completely blocks conduction.
Ventricles rely on an escape pacemaker.
Ventricular rate is slow (20–40 bpm if ventricular escape; 40–60 bpm if junctional escape).
Reduced cardiac output → decreased tissue perfusion.

⚠️ Causes
Acute myocardial infarction (especially inferior or anterior MI)
Degenerative conduction system disease
Coronary artery disease
Myocarditis
Lyme disease
Cardiac surgery
Congenital heart block
Hyperkalaemia
Medications:
Beta-blockers
Digoxin
Calcium channel blockers

🚩 Risk Factors
Older age
Previous heart disease
Coronary artery disease
Hypertension
Diabetes
Cardiomyopathy
Electrolyte imbalance
Use of AV node-blocking drugs

🩺 Signs & Symptoms
Severe bradycardia
Fatigue
Dizziness
Syncope (Stokes–Adams attacks)
Chest pain
Shortness of breath
Hypotension
Confusion
Cold, clammy skin
Cardiac arrest (severe cases)

📈 ECG Findings
P waves and QRS complexes have no relationship (AV dissociation).
Regular P-P intervals.
Regular R-R intervals.
More P waves than QRS complexes.
Slow ventricular rate.
QRS may be narrow (junctional escape) or wide (ventricular escape).

🔬 Diagnosis
12-lead ECG
Continuous cardiac monitoring
Troponin (if MI suspected)
Electrolytes
Echocardiogram
Holter monitor (selected cases)

🚑 Emergency Management
ABC assessment
Oxygen if hypoxic
IV access
Continuous ECG monitoring
Prepare for transcutaneous pacing
Temporary transvenous pacing if needed
Treat reversible causes
Atropine may be attempted but is often ineffective in complete heart block

💊 Treatment
Permanent pacemaker (definitive treatment)
Temporary pacing until permanent pacemaker insertion
Stop AV node-blocking medications if appropriate
Correct electrolyte abnormalities
Treat myocardial infarction or underlying cause

👩‍⚕️ Nursing Management
Monitor heart rate, rhythm, and blood pressure.
Observe for signs of poor perfusion.
Maintain continuous ECG monitoring.
Prepare emergency pacing equipment.
Administer prescribed medications.
Monitor oxygen saturation.
Educate patient about pacemaker care.
Reassure and monitor closely for deterioration.

⚡ Complications
Syncope
Heart failure
Cardiogenic shock
Ventricular arrhythmias
Sudden cardiac arrest
Death (if untreated)

🛡️ Prevention

Control cardiovascular risk factors.
Manage hypertension and diabetes.
Treat coronary artery disease promptly.
Review medications regularly.
Correct electrolyte disturbances early.
Attend regular cardiac follow-up if at risk.