MNJ10-001

Neonatal Resuscitation Program (NRP) Case Scenarios — Term Delivery:

MNJ-P-OSCE 10. Advanced Life support_page_3_Figure_3.jpeg

  1. A baby born at 38 weeks gestation delivered by normal vaginal delivery. Cried immediately after birth with normal tone.
    • a. What are the 3 rapid assessment questions at birth?
    • b. What is the next step in management?

Answer

  1. Three rapid assessment questions:

    • Term gestation?
    • Good muscle tone?
    • Breathing or crying?
  2. Next step:

    • Routine care: Stay with mother for skin-to-skin contact, provide warmth, clear secretions if needed, dry the baby, and ongoing assessment of breathing, tone, and color.

MNJ10-002

A baby born to a primigravida mother at 30 weeks of gestation, birth weight 1100 g, is delivered by emergency LSCS for PPROM. The mother did not receive antenatal corticosteroids:

  1. What are the 4 pre-birth questions to ask the obstetrician (NRP 8th Edition)?
  2. How would you prepare to resuscitate this preterm baby (equipment and pre-resuscitation steps)?
  3. If the baby did not cry at birth, what are your initial steps?
  4. If the baby is gasping/apneic with $\text{HR} < 100\text{ bpm}$ after initial steps, how will you proceed?
  5. After 15 seconds of Positive Pressure Ventilation (PPV), there is no chest rise and $\text{HR} < 100\text{ bpm}$. What corrective steps will you perform?
  6. After 30 seconds of effective PPV, the baby is crying with $\text{HR} > 100\text{ bpm}$ but has labored breathing / grunting. What is the next step?

Answer

  1. Four pre-birth questions (NRP 8th Edition):

      1. Gestational age?
      1. Is amniotic fluid clear?
      1. Are there any additional risk factors?
      1. What is our umbilical cord management plan (delayed cord clamping vs milking)?
  2. Preparation:

    • Switch on radiant warmer, wash hands, and team briefing.
    • Equipment check: Food-grade plastic bag/wrap and thermal mattress ($<32\text{ weeks}$), T-piece resuscitator / self-inflating bag with reservoir, blended oxygen set at 21–30%, pulse oximeter and ECG monitor leads, suction catheter (10F/12F), laryngoscope with size 0/00 blade, and ET tubes (sizes 2.5, 3.0).
  3. Initial steps (Preterm $<32$ weeks):

    • Place baby directly in polyurethane bag/wrap under radiant warmer without drying the body (dry head only and put on a cap).
    • Position airway (sniffing position).
    • Suction mouth then nose only if obstructed.
    • Gentle tactile stimulation.
  4. PPV Initiation:

    • Start PPV with T-piece resuscitator / bag at 40–60 breaths/min with initial $\text{FiO}_2 = 21\text{–}30\%$.
    • Attach pulse oximeter probe to right upper extremity (pre-ductal).
    • Attach 3-lead electronic cardiac monitor for continuous heart rate display.
  5. Ventilation Corrective Steps (MR. SOPA):

    • M: Mask adjustment (ensure tight seal)
    • R: Reposition airway (neutral/sniffing position)
    • (Re-evaluate PPV for 5 breaths; if no chest rise:)
    • S: Suction mouth and nose
    • O: Open the mouth slightly and lift jaw
    • (Re-evaluate PPV; if no chest rise:)
    • P: Pressure increase (in increments of $5\text{–}10\text{ cmH}_2\text{O}$ up to $30\text{–}40\text{ cmH}_2\text{O}$)
    • (Re-evaluate PPV; if no chest rise:)
    • A: Alternative airway (Endotracheal tube or Laryngeal Mask)
  6. Next step for labored breathing:

    • Position and clear airway, provide supplemental blended oxygen if needed to meet target $\text{SpO}_2$, and initiate Continuous Positive Airway Pressure (CPAP) at $5\text{–}6\text{ cmH}_2\text{O}$.

MNJ10-003

(May 2013) Fill in the blanks in the Neonatal Resuscitation Algorithm:

MNJ-P-OSCE 10. Advanced Life support_page_7_Figure_4.jpeg

Answer

Refer to the standard NRP 8th Edition Flowchart:

  1. Target Pre-ductal $\text{SpO}_2$ after Birth:
    • 1 min: 60%–65%
    • 2 min: 65%–70%
    • 3 min: 70%–75%
    • 4 min: 75%–80%
    • 5 min: 80%–85%
    • 10 min: 85%–95%
  2. Initial $\text{FiO}_2$ for PPV: $\ge 35\text{ weeks} = 21\%$; $<35\text{ weeks} = 21\text{–}30\%$.
  3. Chest Compression Ratio: 3:1 (3 compressions : 1 ventilation, 90 compressions and 30 breaths per minute).
  4. Epinephrine Dose:
    • IV/IO: $0.02\text{ mg/kg}$ ($0.2\text{ mL/kg}$ of 1:10,000 solution) followed by $3\text{ mL}$ normal saline flush.
    • Endotracheal (ET): $0.1\text{ mg/kg}$ ($1\text{ mL/kg}$ of 1:10,000 solution).

MNJ10-004

(May 2014) Practical Demonstration Station:

  1. You are called to attend a delivery in the labour room where a baby may require resuscitation. You arrive 30 minutes prior to delivery. Enumerate the equipment checklist and pre-resuscitation preparation.
  2. A 28-week preterm baby is delivered. How will you assess and handle the baby immediately after delivery?

Answer

  1. Pre-resuscitation Preparation:

    • Form resuscitation team & designate team leader / roles.
    • 4 Pre-birth questions: Gestational age, amniotic fluid clarity, number of babies/risk factors, cord clamping plan.
    • Equipment Checklist (Warm, Clear airway, Auscultate, Ventilate, Oxygenate, Intubate, Medicate):
      • Radiant warmer pre-heated, plastic wrap and warming pad.
      • Suction apparatus set at 80–100 mmHg with 10F/12F catheters.
      • T-piece resuscitator / self-inflating bag with reservoir and appropriate masks (sizes 0/1).
      • Oxygen blender and flowmeter ($10\text{ L/min}$).
      • Pulse oximeter and ECG leads.
      • Laryngoscope with size 00/0 blades, ET tubes (2.5, 3.0), stylet, $\text{CO}_2$ detector.
      • Emergency drugs (Epinephrine 1:10,000, Normal saline), UVC catheterization kit.
  2. Handling 28-week Preterm Infant:

    • Delayed cord clamping (30–60 seconds if hemodynamically stable).
    • Place infant directly (without drying) into food-grade polyethylene bag/wrap under radiant warmer; place cap on head.
    • Position head in sniffing position, clear airway if obstructed.
    • Assess breathing, heart rate, and tone within 30 seconds. If apneic/gasping or $\text{HR} < 100\text{ bpm}$, initiate PPV with blended $\text{O}_2$ (21–30%) and apply pulse oximeter probe on right wrist.

MNJ10-005

(Nov 2014) OSCE Station — NICU Nursing & CPAP Care / Acute Resuscitation:

  1. A new nurse joins the NICU. As the posted doctor, instruct the nurse regarding:
    • Care of a preterm infant on a radiant warmer / incubator (modes: servo/skin vs manual, temperature probe placement, neutral thermal environment).
    • Care and monitoring of a baby on bubble CPAP.
  2. You are called to attend the delivery of a term baby with acute fetal distress on NST: Describe the step-by-step interactive resuscitation protocol.

Answer

  1. Incubator & Radiant Warmer Instructions:

    • Radiant Warmer / Incubator Modes:
      • Servo/Skin Mode: Preferred; temperature probe attached securely over right hypochondrium / liver area (avoid bony prominences/brown fat). Target abdominal skin temperature $36.5\text{–}37.5^\circ\text{C}$.
      • Manual Mode: Used only for initial preheating before delivery; never leave unattended in manual mode due to hyperthermia risk.
    • Incubator Care: Maintain air temperature at neutral thermal environment based on birth weight/gestational age; access through portholes; minimize draughts; maintain humidity for extreme preterms ($>70\text{–}85\%$ in week 1).
    • Care on Bubble CPAP:
      • Ensure proper prong size (fill 100% of nares without pinching septum).
      • Prevent nasal trauma: Use hydrocolloid barrier/nasal mustache, check columella hourly.
      • Check bubble chamber for continuous bubbling (confirms circuit patency and PEEP).
      • Orogastric tube left open to vent for gastric decompression.
      • Change position 4–6 hourly; encourage Kangaroo Mother Care (KMC) once stable.
  2. Resuscitation for Acute Fetal Distress:

    • Wash hands, receive baby under radiant warmer in warm dry towel.
    • Check Term? Tone? Crying? If not breathing/gasping $\rightarrow$ provide initial steps (warm, dry, stimulate, position airway, suction mouth then nose).
    • Check HR and respiration: If $\text{HR} < 100\text{ bpm}$ or gasping $\rightarrow$ initiate PPV ($21\%\text{ FiO}_2$, $40\text{–}60\text{ breaths/min}$) + apply pre-ductal pulse oximeter.
    • After 15 seconds: If no chest rise $\rightarrow$ MR. SOPA.
    • After 30 seconds of effective PPV: If $\text{HR} < 60\text{ bpm} \rightarrow$ intubate, increase $\text{FiO}_2$ to 100%, and begin coordinated chest compressions (3:1 ratio).
    • After 60 seconds of compressions: If $\text{HR} < 60\text{ bpm} \rightarrow$ administer IV Epinephrine ($0.02\text{ mg/kg}$ via UVC) followed by $3\text{ mL}$ normal saline flush.

MNJ10-006

A 2-year-old child was struck by an automobile. On arrival: $\text{Respiratory Rate} = 0$, Central Pulse = Absent. ECG monitor is shown below:

MNJ-P-OSCE 10. Advanced Life support_page_12_Figure_7.jpeg

  1. What is the diagnosis based on the clinical presentation and ECG rhythm?
  2. If initial rhythm assessment confirms a shockable rhythm (VF / Pulseless VT), write down the step-by-step PALS resuscitation algorithm.

Answer

  1. Diagnosis: Pulseless Ventricular Tachycardia (pVT) / Ventricular Fibrillation (VF) or Pulseless Electrical Activity (PEA) depending on rhythm interpretation; the scenario presents a shockable cardiac arrest rhythm (pVT/VF).
  2. PALS Shockable Rhythm Management:
    • Start CPR: High-quality CPR, give 100% oxygen, attach defibrillator/monitor pads.
    • 1st Shock: Defibrillate immediately with $2\text{ J/kg}$.
    • Resume CPR immediately: 2 minutes of CPR (15:2 ratio with 2 rescuers; continuous compressions 100–120/min if advanced airway in place). Obtain IV/IO access.
    • Check Rhythm: If still VF/pVT $\rightarrow$ 2nd Shock: $4\text{ J/kg}$.
    • Resume CPR: Give Epinephrine $0.01\text{ mg/kg}$ ($0.1\text{ mL/kg}$ of 1:10,000 IV/IO) every 3–5 minutes. Consider advanced airway and capnography.
    • Check Rhythm: If still shockable $\rightarrow$ 3rd Shock: $\ge 4\text{ J/kg}$ (up to $10\text{ J/kg}$ or adult max).
    • Resume CPR: Administer Amiodarone $5\text{ mg/kg}$ bolus IV/IO (or Lidocaine $1\text{ mg/kg}$).
    • Treat reversible causes (Hs and Ts).

MNJ10-007

A 5-year-old child was struck by an automobile. On arrival: $\text{Respiratory Rate} = 0$, Central Pulse = Absent. ECG monitor is shown below:

MNJ-P-OSCE 10. Advanced Life support_page_13_Figure_2.jpeg

  1. What is the diagnosis after reading the ECG and clinical condition?
  2. The rhythm is confirmed to be non-shockable. Write down the step-by-step PALS resuscitation steps.

Answer

  1. Diagnosis: Asystole (cardiac arrest / flat line).
  2. PALS Non-Shockable Rhythm Management (Asystole / PEA):
    • Immediate High-Quality CPR: 15:2 compression-to-ventilation ratio with 100% oxygen.
    • Epinephrine as early as possible: $0.01\text{ mg/kg}$ ($0.1\text{ mL/kg}$ of 1:10,000) IV/IO, repeat every 3–5 minutes.
    • Advanced Airway: Endotracheal intubation or SGA with continuous waveform capnography ($\text{ETCO}_2$).
    • Rhythm & Pulse Check: Every 2 minutes (switch compressor).
    • Search and treat reversible causes (Hs & Ts):
      • Hs: Hypovolemia, Hypoxia, Hydrogen ion (acidosis), Hypoglycemia, Hypo/Hyperkalemia, Hypothermia.
      • Ts: Tension pneumothorax, Tamponade (cardiac), Toxins, Thrombosis (pulmonary / coronary).

MNJ10-008

PALS Cardiac Arrest / Arrhythmias Fill in the Blanks:

MNJ-P-OSCE 10. Advanced Life support_page_13_Figure_5.jpeg MNJ-P-OSCE 10. Advanced Life support_page_19_Picture_2.jpeg

Enumerate the 4 core cardiac arrest rhythms associated with an absent pulse.

Answer

The 4 cardiac arrest rhythms are:

  1. Shockable Rhythms:
    • Ventricular Fibrillation (VF)
    • Pulseless Ventricular Tachycardia (pVT)
  2. Non-Shockable Rhythms:
    • Asystole
    • Pulseless Electrical Activity (PEA) / Electromechanical Dissociation (EMD)

MNJ10-009

An 8-year-old submersion (drowning) victim presents with apnea and no palpable pulse.

What cardiac arrest arrhythmias could be present in this child?

Answer

  1. Asystole (most common in pediatric hypoxic/drowning arrest)
  2. Pulseless Electrical Activity (PEA)
  3. Severe sinus bradycardia progressing to agonal rhythm
  4. Ventricular Fibrillation (VF) / Pulseless VT (especially if associated with profound hypothermia or underlying channelopathy / Long QT syndrome)

MNJ10-010

A 4-month-old male infant presents with irritability, sweating, poor feeding, and lethargy. Admitted to PICU. ECG is shown below:

MNJ-P-OSCE 10. Advanced Life support_page_14_Figure_8.jpeg MNJ-P-OSCE 10. Advanced Life support_page_14_Picture_9.jpeg

  1. What is the ECG diagnosis and what drug of choice is given?
  2. What is the dose of the drug (first dose, second dose, maximum dose) and how is it administered?

Answer

  1. ECG Diagnosis: Paroxysmal Supraventricular Tachycardia (PSVT) — narrow QRS complex tachycardia with absent P waves and heart rate $>220\text{ bpm}$ in infants.
    • Drug of choice: IV Adenosine.
  2. Adenosine Dosing & Administration:
    • 1st Dose: $0.1\text{ mg/kg}$ rapid IV push (maximum first dose $6\text{ mg}$).
    • 2nd Dose: $0.2\text{ mg/kg}$ rapid IV push (maximum second dose $12\text{ mg}$) if no response within 1–2 minutes.
    • Administration Technique: Rapid intravenous bolus via large-bore IV close to central circulation, followed immediately by a rapid $5\text{–}10\text{ mL}$ normal saline flush (two-syringe technique).

MNJ10-011

MNJ-P-OSCE 10. Advanced Life support_page_15_Figure_2.jpeg

  1. What is the rhythm shown on the monitor?
  2. What are the possible reversible contributing factors (Hs and Ts)?
  3. What emergency interventions should you consider in a child with symptomatic bradycardia?

Answer

  1. Rhythm: Symptomatic / Severe Sinus Bradycardia.
  2. Contributing factors:
    • Hypoxia (most common cause in children)
    • Hypothermia
    • Hypovolemia / Shock
    • Hyperkalemia / Hypokalemia / Acidosis
    • Heart block / Cardiac pathology
    • Toxins / Drugs (e.g., digoxin, beta-blockers, organophosphates)
    • Increased intracranial pressure (Cushing's triad)
  3. Emergency Interventions:
    • Maintain airway, support breathing with $100\%\text{ oxygen}$ and ventilation.
    • If $\text{HR} < 60\text{ bpm}$ with poor perfusion despite adequate oxygenation and ventilation $\rightarrow$ start Chest Compressions.
    • Epinephrine: $0.01\text{ mg/kg}$ ($0.1\text{ mL/kg}$ of 1:10,000) IV/IO every 3–5 min.
    • Atropine: $0.02\text{ mg/kg}$ (minimum $0.1\text{ mg}$, maximum single dose $0.5\text{ mg}$) if bradycardia is due to increased vagal tone, cholinergic drug toxicity, or primary AV block.
    • Consider transcutaneous pacing.

MNJ10-012

Foreign Body Airway Obstruction (FBAO) Management Station:

  • Case 1: An 8-month-old infant presents with sudden onset cough and choking after pea ingestion.
  • Case 2: A 4-year-old child presents with sudden severe choking and respiratory distress.

Demonstrate and describe the management steps for both age groups (conscious vs unconscious).

Answer

  1. General Principles:

    • Do NOT perform blind finger sweeps (can push foreign body deeper into larynx).
    • If child is coughing effectively, encourage spontaneous coughing and observe closely.
  2. Infant ($<1\text{ year old}$):

    • Conscious infant with severe obstruction (silent cough, cyanosis):
      • Position infant face-down (prone) along your forearm/thigh, supporting head with jaw.
      • Deliver 5 firm back slaps/blows between scapulae with heel of hand.
      • Turn infant face-up (supine) and deliver 5 chest thrusts (lower half of sternum, similar to CPR compressions).
      • Repeat cycle of 5 back blows and 5 chest thrusts until foreign body is expelled or infant becomes unresponsive.
    • Unresponsive infant:
      • Lower infant onto firm flat surface, call for emergency help.
      • Start CPR (30:2 single rescuer or 15:2 two rescuers). Look in mouth before ventilations; if foreign body is clearly visible, remove it.
  3. Child ($\ge 1\text{ year old}$):

    • Conscious child:
      • Perform Heimlich maneuver (subdiaphragmatic abdominal thrusts): Stand behind child, place fist midline between xiphoid process and umbilicus, deliver quick upward and inward thrusts in sets of 5 until dislodged.
    • Unresponsive child:
      • Position supine, shout for help, initiate CPR (compressions $\rightarrow$ airway $\rightarrow$ breathing). Inspect oropharynx before each ventilation attempt.

MNJ10-013

MNJ-P-OSCE 10. Advanced Life support_page_15_Picture_13.jpeg

  1. What is this device?
  2. What are its indications?
  3. What are the contraindications?
  4. Mention two limitations.
  5. Mention potential complications.

Answer

  1. Device: Laryngeal Mask Airway (LMA) / Supraglottic Airway Device (SAD).
  2. Indications:
    • Rescue airway in "cannot intubate, cannot oxygenate / cannot ventilate" scenarios.
    • Elective airway management for short pediatric surgical procedures under general anesthesia.
    • Alternative airway during CPR when endotracheal intubation is difficult or unavailable.
  3. Contraindications:
    • Complete upper airway obstruction below the level of the larynx.
    • Severe trismus or limited mouth opening.
  4. Limitations:
    • Does not completely protect against gastric regurgitation and pulmonary aspiration.
    • May dislodge easily during patient transfer or resuscitation movements.
    • High airway pressures ($>20\text{ cmH}_2\text{O}$) can cause gastric insufflation and air leak.
  5. Complications: Aspiration of gastric contents, laryngospasm, sore throat, local mucosal trauma, hypoglossal or lingual nerve neuropraxia.

MNJ10-014

A 12-year-old girl Ritu has sustained injury to the neck due to a road traffic accident. She is breathing but cannot move or feel her arms or legs.

  1. What airway opening maneuver must be used in suspected cervical spine/neck injuries?
  2. Cervical spine X-ray shows no bony fracture or dislocation. Is it still possible for her to have spinal cord injury? Name the condition and mode of definitive diagnosis.
  3. What is the emergency medical/pharmacological treatment offered within 8 hours of injury?

Answer

  1. Airway Maneuver: Modified Jaw-thrust without head tilt (while maintaining manual in-line cervical spine stabilization).
  2. Spinal Cord Injury without Radiographic Abnormality (SCIWORA):
    • Yes, children have high vertebral elasticity compared to the spinal cord.
    • Definitive Diagnosis: MRI of the spine (demonstrates cord edema, contusion, hemorrhage, and ligamentous disruption).
  3. Emergency Medical Treatment:
    • High-dose intravenous Methylprednisolone ($30\text{ mg/kg}$ IV bolus over 15 minutes, followed 45 minutes later by continuous infusion of $5.4\text{ mg/kg/hr}$ for 23 hours if started within 3–8 hours of injury).

MNJ10-015

  1. Define: (a) Drowning, (b) Non-fatal drowning (formerly near-drowning).
  2. List 3 predisposing risk factors for drowning in children.
  3. List 2 electrolyte disturbances and 1 hematological disturbance in drowning victims.
  4. What is the most common radiological finding on chest X-ray?

Answer

  1. Definitions (WHO consensus):
    • Drowning: The process of experiencing respiratory impairment from submersion/immersion in liquid resulting in death.
    • Non-fatal drowning: Survival (at least temporarily) following respiratory impairment from submersion/immersion.
  2. Predisposing factors:
    • Seizure disorder (epilepsy)
    • Underlying cardiac channelopathy (Congenital Long QT Syndrome, e.g., Jervell and Lange-Nielsen / Romano-Ward syndrome)
    • Lack of adult supervision / inability to swim
    • Head/cervical trauma or intoxication (older adolescents)
  3. Laboratory disturbances:
    • Electrolytes: Hyperkalemia (from hemolysis/acidosis/tissue hypoxia), Hyponatremia or Hypernatremia, Metabolic acidosis.
    • Hematological: Intravascular hemolysis, Disseminated Intravascular Coagulation (DIC).
  4. CXR finding: Bilateral diffuse alveolar/interstitial pulmonary edema (ARDS / chemical pneumonitis).

MNJ10-016

MNJ-P-OSCE 10. Advanced Life support_page_16_Picture_8.jpeg

  1. Identify the instrument.
  2. Name its parts.
  3. What internal diameter (ID) size would you use in a 6-year-old child?
  4. Mention physiological/hemodynamic changes that occur during laryngoscopy and tracheal intubation in children.

Answer

  1. Instrument: Uncuffed Endotracheal Tube (ETT).
  2. Parts:
    • 15 mm machine connector/adaptor
    • Tube shaft with length depth markings (in cm)
    • Radiopaque longitudinal marker line
    • Vocal cord guide mark
    • Murphy's eye (side hole at distal bevel)
    • Distal beveled tip
  3. Size calculation for 6-year-old child:
    • $\text{Uncuffed ETT Size (ID in mm)} = \frac{\text{Age in years}}{4} + 4 = \frac{6}{4} + 4 = 5.5\text{ mm}$ (always keep sizes 5.0 mm and 6.0 mm ready).
    • $\text{Cuffed ETT Size} = \frac{\text{Age}}{4} + 3.5 = 5.0\text{ mm}$.
    • Depth of insertion: $\text{Age}/2 + 12 = 3 + 12 = 15\text{ cm}$ (or $\text{ETT ID} \times 3 = 16.5\text{ cm}$).
  4. Physiological changes during intubation:
    • Raised Intracranial Pressure (ICP) and Intraocular Pressure (IOP)
    • Reflex laryngospasm and bronchospasm
    • Hypoxia and hypercapnia if delayed
    • Hypertension and tachycardia in older children (sympathetic reflex)
    • Vagal-mediated bradycardia and hypotension in infants and young children

MNJ10-017

MNJ-P-OSCE 10. Advanced Life support_page_16_Picture_15.jpeg MNJ-P-OSCE 10. Advanced Life support_page_16_Picture_16.jpeg

  1. Name the device shown.
  2. What does the color of the mask's adaptors reflect?
  3. Mention the $\text{FiO}_2$ achieved with various color-coded adaptors.
  4. Mention the typical delivered $\text{FiO}_2$ and flow rates for:
    • a. Nasal prongs (cannula)
    • b. Simple face mask
    • c. Non-rebreathing mask (NRBM) with reservoir bag

Answer

  1. Device: Venturi Mask (Air-entrainment mask / Fixed-performance oxygen delivery system).
  2. Significance: The color of each adaptor indicates the specific fixed fraction of inspired oxygen ($\text{FiO}_2$) delivered at a designated minimum oxygen flow rate.
  3. Color-Coded Venturi Adaptors:
    • Blue: $24\%\text{ FiO}_2$ (at 2–4 L/min)
    • White: $28\%\text{ FiO}_2$ (at 4–6 L/min)
    • Yellow: $35\%\text{ FiO}_2$ (at 6–8 L/min)
    • Red: $40\%\text{ FiO}_2$ (at 8–10 L/min)
    • Green: $60\%\text{ FiO}_2$ (at 12–15 L/min)
  4. Oxygen Delivery Systems:
    • a. Nasal Prongs: Flow 1–4 L/min $\rightarrow \text{FiO}_2 \approx 24\%\text{–}35\%$ (approx $4\%\text{ per L/min}$).
    • b. Simple Face Mask: Flow 6–10 L/min $\rightarrow \text{FiO}_2 \approx 35\%\text{–}60\%$.
    • c. Non-Rebreathing Mask (NRBM): Flow 10–15 L/min $\rightarrow \text{FiO}_2 \approx 85\%\text{–}95\%+$.

MNJ10-018

You are asked to perform Rapid Sequence Intubation (RSI) in a critically ill child. Enumerate the sequential 7 Ps / steps of RSI, mentioning the names and classes of drugs used.

Answer

The 7 Ps of Rapid Sequence Intubation (RSI):

  1. Preparation: Check suction, airway equipment (ETT, laryngoscopes, bag-mask), monitors, and prepare medications.
  2. Preoxygenation: 100% $\text{O}_2$ via non-rebreather mask for 3–5 minutes to wash out nitrogen and create oxygen reservoir.
  3. Pretreatment / Premedication:
    • Atropine ($0.02\text{ mg/kg}$, min $0.1\text{ mg}$) in infants $<1\text{ year}$ to prevent reflex bradycardia.
    • Lidocaine ($1.5\text{ mg/kg}$) in raised ICP.
    • Fentanyl ($1\text{–}2\text{ }\mu\text{g/kg}$) to attenuate sympathetic response.
  4. Paralysis with Induction (Sedation):
    • Induction agents: Ketamine ($1\text{–}2\text{ mg/kg}$), Propofol ($1.5\text{–}2.5\text{ mg/kg}$), Etomidate ($0.3\text{ mg/kg}$), or Midazolam ($0.1\text{–}0.3\text{ mg/kg}$).
    • Neuromuscular blocking agents: Succinylcholine ($1.5\text{–}2\text{ mg/kg}$) or Rocuronium ($1\text{–}1.2\text{ mg/kg}$).
  5. Protection and Positioning: Sniffing position (with shoulder roll in infants). Apply Sellick maneuver (cricoid pressure) if indicated.
  6. Placement with Proof: Direct/video laryngoscopy, pass ETT through vocal cords. Confirm placement with continuous waveform capnography ($\text{ETCO}_2$), bilateral equal breath sounds, and absence of gastric insufflation.
  7. Post-intubation Management: Secure ETT, note cm mark at lips, chest radiography for depth confirmation, mechanical ventilation, and continuous post-intubation sedation/analgesia.

MNJ10-019

A 3-year-old child is brought to the ER at 10:30 AM with a weight of 12 kg and 45% burns sustained in a house fire at 5:30 AM.

MNJ-P-OSCE 10. Advanced Life support_page_17_Picture_2.jpeg

  1. Calculate his fluid requirement in the first 48 hours as per the Parkland formula.
  2. By what exact clock time should the first 24-hour resuscitation fluid be completed?
  3. What is the target serum albumin level in this child?
  4. How much 5% Albumin should be infused in this patient?

Answer

  1. Fluid Requirement Calculations:

    • First 24-Hour Resuscitation Fluid (Parkland Formula): $$\text{Volume} = 4\text{ mL} \times \text{Weight (kg)} \times \%\text{ Burn} = 4 \times 12 \times 45 = 2160\text{ mL of Ringer's Lactate}$$
      • First 8 hours from time of injury (5:30 AM to 1:30 PM): Half volume = $1080\text{ mL}$. (Since child arrived at 10:30 AM, 5 hours have already elapsed; remaining $1080\text{ mL}$ must be run over the next 3 hours by 1:30 PM).
      • Next 16 hours (1:30 PM to 5:30 AM next day): Remaining half volume = $1080\text{ mL}$ ($67.5\text{ mL/hr}$).
      • Plus Maintenance Fluid: $1100\text{ mL/24 hr}$ ($1000 + 2 \times 50$).
    • Second 24-Hour Fluid:
      • Colloid / 5% Dextrose in half-normal saline or RL at $\approx \frac{1}{2}$ of first day requirement ($1080\text{ mL}$) plus maintenance.
  2. Completion Time: First 24-hour cycle is completed at 5:30 AM the next day (24 hours from the exact time of burn injury).

  3. Desired Serum Albumin: $\ge 2.5\text{–}3.0\text{ g/dL}$ ($\ge 2.0\text{ g/dL}$ minimum).

  4. Colloid (5% Albumin) Infusion:

    • For 30%–50% burns: $0.3\text{ mL}$ of 5% albumin/kg/% burn over 24 hours: $$\text{Dose} = 0.3 \times 12\text{ kg} \times 45 = 162\text{ mL of 5% Albumin}$$