Principles of Biomedical Technology (Principles of Biomedical Science)
Unit 2: Unit 2.1 Clinical DataPBS 2.1Biotechnology Research and Experiments

Read Monitoring Data

Use patient evidence to read monitoring data without overclaiming.

Builds on (2 levels back)inferred · high confidence
  • Sign vs. symptom: Clinical data mixes measured findings with patient-reported history.
  • Normal range comparison: Students need a reference range or baseline to tell whether a value is concerning.

Prerequisites are inferred: pending teacher review.

Re-learn the skill with worked practice and clear examples.

Read a trend across timepoints: is the value rising or falling?

Step 1: Read the table
The table shows SpO2 at four times.
TimeSpO2 (%)
8:0098
8:3095
9:0092
9:3088
Monitor readout table of oxygen saturation values at four times
Step 2: Compare across rows
Look at how the value changes from the first time to the last.
Practice

Using the monitor table, how does the SpO2 change from 8:00 to 9:30?

Reviewed
TimeSpO2 (%)
8:0098
8:3095
9:0092
9:3088
Monitor readout table of oxygen saturation values at four times
  1. A.It falls steadily over time
  2. B.It rises steadily over time
  3. C.It stays exactly the same
  4. D.It rises and then falls
Show the worked solution ▾

Answer: A. It falls steadily over time

  1. Step 1: List the values: The readings are 98, 95, 92, then 88.
  2. Step 2: Describe the trend: Each reading is lower than the one before, so it falls steadily.

Why it's right: The readings 98, 95, 92, 88 drop at every step, so the SpO2 falls steadily.

Why the others miss:
  • B: The numbers go down, not up, so it is not rising.
  • C: The numbers change at each time, so it does not stay the same.
  • D: The numbers fall the whole time; they never rise first.

Aligned to Biotechnology Research and Experiments · reading level ~grade 9

Where you'd see this
  • A nurse watches a monitor trend to see whether a patient is getting better or worse.
Video library
Watch: Read Monitoring Data
EKG/ECG Interpretation Basics Nursing NCLEX | QRS Complex, P Wave, T Wave, PR Interval
RegisteredNurseRN · 22:50
Guided notes

Fill these in as you work through the lesson.

Big idea: Reading monitoring data means pulling a value or trend off a monitor and acting when it crosses an alarm threshold.
Key terms: write the meaning
  • Monitor reading (a value shown at one time):  
  • Trend (how the value changes over time):  
  • Alarm threshold (value that triggers action, e.g. SpO2 below 90%):  
  • SpO2 (oxygen saturation, a percent):  
The rule

Read the value at each  , follow the   over time, and act when it crosses the alarm threshold.

Check yourself
  1. What is the value at this time? 
  2. Is the value rising or falling? 
  3. Has it crossed the alarm threshold? 
Work one example

Read the monitor table, describe the trend, and find when SpO2 first drops below 90%.