Activity 1.1 · Worksheet Packet

11 pages · print one per student ← Back to the slides
At the printer: hit Print / Save as PDF above (or Ctrl+P). In the print dialog choose Save as PDF under Destination to keep a copy, and turn Background graphics ON — without it the writing lines and shaded headers disappear. Paper: Letter, portrait. Each sheet is already sized to one page.
Vital Signs Are Clues
Worksheet 1
NamePeriodDate
Today: find out what a vital sign is and why medical detectives start there.

Part A · Build the word

Word partWhat it means
vital
sign
vital sign

Sign vs. symptom

A sign is something you can measure (a temperature of 101°F). A symptom is what the patient feels and tells you ("my head hurts").

Part B · While you watch the video

List the four vital signs you will measure in this activity.

#Vital signWhat it tells a doctor
1
2
3
4

Part C · Think like a detective

1A nurse has only two minutes with a new patient. Why is measuring vital signs a good use of those two minutes?

Measuring vital signs is useful because ______, and it helps the doctor ______.

2Detectives look for evidence. How is a vital sign like a clue at a crime scene?

Medical Detectives · Activity 1.1Worksheet 1 of 11
Station A · Pulse
Worksheet 2
NamePeriodDate
Today: measure a pulse correctly and turn a 15-second count into beats per minute.

Part A · The steps, in your own words

  1. Set the stopwatch to ______ seconds.
  2. Use your ____________ and ____________ fingertips. Never use your ____________.
  3. Place your fingertips on the wrist, on the ____________ side, palm ____________.
  4. Count the beats for 15 seconds, then multiply by ______.

⚠ Why not the thumb?

Your thumb has its own pulse. If you use it, you may count your heartbeat instead of your partner's.

Part B · Practice the math (15 seconds × 4)

Beats counted in 15 seconds× 4Beats per minute (bpm)Inside 60–100?
15× 4
18× 4
22× 4
27× 4
31× 4

Part C · Your data

Whose pulseBeats in 15 sBeats per minute
Mine
My partner's

Part D · Reflection

1Compare your pulse with your partner's. Did you get different readings?

2If the readings were different, why do you think that happened, and what might it mean?

My pulse was ______ than my partner's. I think this happened because ______.

Medical Detectives · Activity 1.1Worksheet 2 of 11
Station C · Respiratory Rate
Worksheet 3
NamePeriodDate
Today: count breaths for one minute and explain why resting matters.

Part A · The steps

  1. Partner sits with feet on the ____________ and breathes ____________.
  2. Set the stopwatch to ____________ minute.
  3. Count every time the chest ____________. That is one breath.
  4. Stop at the beep and record the number.

⚠ Count rises only

A rise and a fall together are one breath — not two.

Part B · Your data

Whose breathingBreaths in 1 minuteInside 12–18?
Mine
My partner's

Part C · Reflection

1Why is it important to get a resting respiratory rate instead of a rate while a person is active?

A resting rate is better because ______. If the person just ran, the rate would ______.

2Compare your resting rate with your partner's. What differences do you notice, and why might they differ?

Detective tip

People change how they breathe when they know they are being watched. Many nurses count breaths right after taking the pulse — without saying so.
Medical Detectives · Activity 1.1Worksheet 3 of 11
Body Temperature
Worksheet 4
NamePeriodDate
Today: no thermometers. Work out what a body temperature number actually means, so that tomorrow you know what you are holding.

Part A · Average or rule?

1Fill in the blanks.

98.6 °F is an , not a .
A healthy person at rest is somewhere between °F and °F.
A doctor calls it a fever at °F and above.

Part B · One healthy person, one whole day

97.5 98.0 98.5 99.0 12 a.m. 6 a.m. noon 6 p.m. 12 a.m.

2Coldest at about   warmest at about   and the whole swing is about °F.

3Nobody on this graph is sick. So why does the time of day belong on your evidence log next to the number?

Part C · Core or skin?

Tick one box for each. Does it change the core (the real inside temperature), or only the skin on the outside?

What happensChanges the COREChanges the SKIN only
Running a lap right before you measure
Standing in the sun for one minute
Fighting off an infection
Sitting under the air conditioning vent

Part D · Talk it through

4A friend reads 98.0 °F and says "my temperature is low." What would you tell them?

98.0 °F is ______ because the normal range is ______.

5Two healthy people measure at the same moment and get different numbers. Give two reasons, with nobody being sick.

6Predict. Tomorrow we measure on the forehead — on the skin. Name one thing that could make a forehead reading wrong.

Medical Detectives · Activity 1.1Worksheet 4 of 11
Station B · Temperature
Worksheet 5
NamePeriodDate
Today: take a temperature with a no-touch forehead thermometer, then decide whether the number can be trusted.

Where the number sits

Below under 97.8 · In range 97.8–99.1 · Above, no fever 99.2–100.3 · Fever 100.4 and up (°F). A forehead reading often runs a few tenths low — it reads skin, not core.

Part A · Practice readings

#The screen saysWhat would you call it? (circle one)
198.2 °FBelow the range · In range · Above range, no fever · Fever
297.1 °FBelow the range · In range · Above range, no fever · Fever
3100.9 °FBelow the range · In range · Above range, no fever · Fever
499.6 °FBelow the range · In range · Above range, no fever · Fever
598.9 °FBelow the range · In range · Above range, no fever · Fever

Part B · Your data — indoors, resting

Whose temperatureReading (°F)Time of dayInside 97.8–99.1?
Mine
My partner's

Part C · The sun test

One minute in direct sun, forehead uncovered, then measure again immediately. Nobody looks at the sun.

Whose foreheadIndoors, restingStraight after the sunDifference (+ or −)
Mine
My partner's

1Is the reading taken after one minute in the sun a valid measure of your partner's body temperature? Why or why not?

The sun reading is / is not valid because the thermometer measured ______, and what we wanted was ______.

Part D · Reflection

2What should a person do before a forehead temperature is taken, so the reading can be trusted? Give two things.

3What other ways can body temperature be taken, and why are some more accurate than others?

I think ______ is more accurate than ______ because ______.

Medical Detectives · Activity 1.1Worksheet 5 of 11
Blood Pressure
Worksheet 6
NamePeriodDate
Today: understand what blood pressure actually measures, and why one reading is never enough. No cuffs today — this is the thinking behind them.

Part A · Two numbers, not one

NumberIts nameWhat the heart is doing
Top (higher)
Bottom (lower)

Memory hook

Systolic = Squeeze, so it is always the bigger number. Blood pressure is written like 118/76 and said “118 over 76”. The unit is mm Hg.

1Why does the bottom number matter, if the heart is resting at that moment?

The bottom number matters because the arteries ______.

Part B · A target, not a rule

ReadingInside 90/60–120/80?How do you know?
112 / 70
96 / 58
134 / 84
118 / 79

⚠ Not a diagnosis

A single reading outside the range does not mean someone is sick, and we do not diagnose anybody in this room — including ourselves.

Part C · What pushes a reading off

Fill in the direction each mistake pushes the top number, and why.

What the patient doesUp or down?Why
Talking during the test
Legs crossed
Arm hanging below the heart
Cuff too small for the arm

2What do almost all of these mistakes have in common?

Part D · Talk it through

3Your partner jogged in from lunch and is telling you about it while you measure. Name two things that would push the reading off, and say which direction.

4Tomorrow the cuff goes on the upper arm and the arm rests on the table. Predict why the arm has to be level with the heart.

The arm must be level with the heart because ______.

Medical Detectives · Activity 1.1Worksheet 6 of 11
Station D · Blood Pressure
Worksheet 7
NamePeriodDate
Today: use the cuff correctly and explain the two numbers.

Part A · The two numbers

NumberNameWhat the heart is doing
Top (higher)
Bottom (lower)

Memory hook

Systolic = Squeeze. The heart is working, so that number is always the bigger one. Blood pressure is measured in mm Hg (millimeters of mercury).

Part B · Set up the cuff

  1. Partner rests ______ to ______ minutes, sitting still, legs uncrossed, not talking.
  2. Cuff goes on the ____________ arm, at least ______ inch above the elbow crease.
  3. The arm rests level with the ____________.
  4. Record the reading as ______ / ______ mm Hg.

Part C · Your data

Whose blood pressureSystolicDiastolicInside range?
Mine
My partner's

Part D · Reflection

1How might a patient's blood pressure be affected if they are nervous at the doctor's office? Why might it be good to check it more than once?

2What other factors might change a person's blood pressure?

Medical Detectives · Activity 1.1Worksheet 7 of 11
Evidence Log · All Four Stations
Worksheet 8
NamePeriodDate
Today: rotate through all four stations and record every measurement. This is your evidence — keep it safe.
Name Pulse
bpm
Temperature
°F
Respiratory rate
breaths/min
Blood pressure
mm Hg
My name
My partner

Second reading (optional — if a number looked strange)

NamePulseTemperatureRespiratory rateBlood pressure
My name
My partner

⚠ Lab rules

Wash your hands before and after the temperature station · throw away the thermometer strip immediately after you record the number · write the number down the moment you read it.

Station check-off

StationMe → partner ✓Partner → me ✓Trouble we had
A · Pulse
B · Temperature
C · Respiratory rate
D · Blood pressure
Medical Detectives · Activity 1.1Worksheet 8 of 11
Analyze the Data
Worksheet 9
NamePeriodDate
Today: compare your evidence with the normal ranges and explain what you see.
Vital signAverage lowAverage highMy readingInside range?
Pulse60 bpm100 bpm
Temperature97.8 °F99.1 °F
Respiratory rate12 /min18 /min
Blood pressure90/60120/80

⚠ Not a diagnosis

These ranges change with age, sex, family history, lifestyle and medicine. Use them to guide your thinking — never to diagnose anyone, including yourself.

1What observations did you make when you compared your data with the normal ranges?

My ______ was ______, which is inside / outside the normal range of ______.

2What could you do to raise or lower one of your vital sign measurements?

If I ______, I think my ______ would go up / down because ______.

Case study · the clue that solved it

A patient came in with pain near the kidneys, but no kidney stones were found. The nurse noticed an abnormal respiratory rate, and the doctor found a blood clot in the lungs. Why does this case show that you must check all the vital signs?

Medical Detectives · Activity 1.1Worksheet 9 of 11
Conclusion
Worksheet 10
NamePeriodDate
Today: prove what you learned, the way a scientist does — Claim, Evidence, Reasoning.

Answer like a detective — C.E.R.

Claim — answer the question in one sentence.
Evidence — give a number or a fact from this activity.
Reasoning — explain how your evidence proves your claim.

Question 1

Why is it necessary to check more than one vital sign on a patient?

Claim:

Evidence:

Reasoning:

Question 2

How might vital signs change the decisions a medical professional makes while investigating an illness?

Claim:

Evidence:

Reasoning:

Careers

Name two other careers that need to check vital signs, and one thing that would be hard about it in that job.

Medical Detectives · Activity 1.1Worksheet 10 of 11
Word Bank · Banco de Palabras
Worksheet 11
NamePeriodDate
Keep this sheet out during every part of Activity 1.1. Guarda esta hoja durante toda la Actividad 1.1.
Medical Detectives · Activity 1.1Worksheet 11 of 11