NORCET Conquest V3.0

Phase 0: Foundations & Math

The Essential Scientific Bedrock - High-Yield Science & Calculations

4-6 hours

Module Overview

This module covers the essential scientific foundations and calculation skills needed for NORCET success. Master these concepts to solve any ABG or nursing calculation question quickly and accurately.

1Acid-Base Balance (The 'ROME' Method)

Target: Solve any ABG question in less than 30 seconds!

1. Normal Values (Memorize These)

ParameterNormal RangeKey Point
pH7.35 – 7.45Absolute Normal: 7.40
PaCO₂ (Respiratory)35 – 45 mmHgAcidic if > 45
HCO₃⁻ (Metabolic)22 – 26 mEq/LBasic if > 26

2. The ROME Mnemonic

Respiratory = Opposite

  • pH + PCO₂ = Respiratory Alkalosis
  • pH + PCO₂ = Respiratory Acidosis

Metabolic = Equal

  • pH + HCO₃⁻ = Metabolic Alkalosis
  • pH + HCO₃⁻ = Metabolic Acidosis

3. Compensation Cheat Sheet

ConditionpHPaCO₂HCO₃⁻Compensation
Resp. AcidosisNormalKidneys retain HCO₃⁻ (Slow)
Resp. AlkalosisNormalKidneys excrete HCO₃⁻ (Slow)
Met. AcidosisNormalLungs blow off CO₂ (Kussmaul - Fast)
Met. AlkalosisNormalLungs retain CO₂ (Slow)

2Nursing Calculation Mastery

1. The Parkland Formula (Burn Fluid Resuscitation)

Protocol: 2nd/3rd degree burns

Total Fluid (24hrs) = 4ml × Body Weight (kg) × TBSA (%)

First 8 hours

Give 50% of total calculated volume

Next 16 hours

Give remaining 50%

Example Calculation

Patient: 60kg, 30% TBSA burn

  • • Total = 4 × 60 × 30 = 7,200ml
  • • Action: Infuse 3,600ml in first 8 hours (450ml/hr)

2. IV Drip Rate (Drops/min)

gtts/min = (Total Volume × Drop Factor) ÷ Time in Minutes
Drip TypeDrop FactorUse Case
Macro Drip15 or 20 gtts/mlStandard adult infusions
Micro Drip60 gtts/mlPediatrics / Critical Care

Quick Calculation Tips

Exam Tip

For micro drip (60 gtts/ml), the drip rate equals ml/hr!

Exam Tip

Always calculate from time of burn injury, NOT arrival time!

Key Takeaways

  • Use ROME to quickly identify acid-base imbalances
  • Memorize normal values: pH 7.35-7.45, PaCO₂ 35-45, HCO₃⁻ 22-26
  • Parkland Formula: 4ml × kg × TBSA% (50% in first 8 hours)
  • Micro drip (60 gtts/ml) = ml/hr (quick shortcut!)