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Math for Health Careers

A community-written study guide covering every topic on this event's official test plan. Sign in to contribute to a section.

1Math essentials (add, subtract, multiply, divide, fractions, decimals)

15% of exam

Basic arithmetic is the foundation of health math.

  • Master addition, subtraction, multiplication, and division.
  • Work confidently with fractions and decimals.
  • Understand place value and rounding.
  • Accuracy prevents medical errors.

2Measurement Systems & Conversions

25% of exam

Health careers use several measurement systems.

  • The metric system (g, mg, mL, L) is standard.
  • Know household and metric conversions.
  • Common: 1 g = 1000 mg; 1 L = 1000 mL.
  • Convert carefully between systems.

3Calculations

30% of exam

Clinical work requires accurate calculations.

  • Calculate dosages, rates, and percentages.
  • Use ratios and proportions.
  • Check answers for reasonableness.
  • Precision keeps patients safe.

4Interpreting Medical Information & Data

30% of exam

Reading medical data guides care.

  • Interpret charts, graphs, and tables.
  • Understand vital signs and lab values.
  • Compare results to reference ranges.
  • Data supports good decisions.

Member-written study notes, not official HOSA competition material. Topic titles and exam weights come from the official Math for Health Careers guidelines.