ATI FUNDAMENTALS: VITAL SIGNS Q&A 2026/2027
UPDATED Temperature, Pulse, Respiration, Blood
Pressure, Pain & SpO2 250 Practice Questions with
Verified Answers and Detailed Rationales
SECTION 1: TEMPERATURE ASSESSMENT AND REGULATION
1. The nurse is preparing to assess a patient's temperature. Which site provides the
most accurate core temperature?
• A. Oral
• B. Rectal
• C. Axillary
• D. Tympanic
Answer: B (Rectal)
Rationale: Rectal temperature is the most accurate core temperature because it reflects
the body's internal temperature. It is closest to core body temperature and is least
affected by external factors.
2. A nurse is assessing a patient's temperature orally. The patient has just
consumed hot coffee. How long should the nurse wait before taking the
temperature?
• A. 5 minutes
• B. 10 minutes
• C. 15-20 minutes
• D. 30 minutes
Answer: C (15-20 minutes)
Rationale: When taking an oral temperature, the patient should wait 15-20 minutes
,after eating or drinking hot or cold substances to allow the oral cavity to return to
baseline temperature.
3. Which temperature route is most commonly used in adults for routine
assessment?
• A. Rectal
• B. Axillary
• C. Oral
• D. Tympanic
Answer: C (Oral)
Rationale: The oral route is the most commonly used site for temperature assessment
in adults due to its accessibility, accuracy, and patient acceptance.
4. What is the normal range for oral temperature in adults?
• A. 95.0°F - 97.5°F
• B. 97.5°F - 99.5°F
• C. 98.6°F - 100.4°F
• D. 96.0°F - 98.0°F
Answer: B (97.5°F - 99.5°F)
Rationale: Normal oral temperature ranges from 97.5°F to 99.5°F (36.4°C to 37.5°C). The
average is 98.6°F (37°C). Individual variations occur based on time of day, age, and
activity level.
5. The nurse notes that a patient's axillary temperature is 97.2°F. What would the
nurse expect the oral temperature to be?
• A. 96.2°F
• B. 97.2°F
, • C. 98.2°F
• D. 99.2°F
Answer: C (98.2°F)
Rationale: Axillary temperatures are typically 0.5°F to 1°F lower than oral temperatures.
Therefore, an axillary temperature of 97.2°F would correspond to an oral temperature of
approximately 98.2°F. Axillary temperatures are the least accurate of all routes.
6. Which route of temperature measurement is contraindicated in patients with
ear infections or ear surgery?
• A. Oral
• B. Rectal
• C. Axillary
• D. Tympanic
Answer: D (Tympanic)
Rationale: Tympanic temperature measurement is contraindicated in patients with ear
infections, ear drainage, or recent ear surgery. It may also be inaccurate in patients with
cerumen impaction.
7. The nurse is caring for a patient with neutropenia. Which temperature route is
contraindicated?
• A. Oral
• B. Rectal
• C. Axillary
• D. Tympanic
Answer: B (Rectal)
Rationale: Rectal temperature measurement is contraindicated in patients with
neutropenia (low white blood cells), as it can cause mucosal trauma and introduce
, infection. It is also contraindicated in patients with rectal disorders, diarrhea, or recent
rectal surgery.
8. What is the normal range for tympanic temperature in adults?
• A. 97.5°F - 99.5°F
• B. 98.6°F - 100.6°F
• C. 96.4°F - 98.4°F
• D. 99.0°F - 101.0°F
Answer: B (98.6°F - 100.6°F)
Rationale: Tympanic temperatures are typically 0.5°F to 1°F higher than oral
temperatures. The normal range for tympanic temperature is 98.6°F to 100.6°F (37°C to
38.1°C).
9. Which of the following can affect oral temperature readings?
• A. Smoking
• B. Drinking cold liquids
• C. Recent exercise
• D. All of the above
Answer: D (All of the above)
Rationale: Smoking, drinking cold or hot liquids, and recent exercise can all affect oral
temperature readings. Patients should wait 15-20 minutes after any of these activities
before taking an oral temperature.
10. A nurse is assessing a patient's temperature using a temporal artery
thermometer. Which of the following is a correct technique?
• A. Place the probe directly on the temporal artery
• B. Scan the forehead from the temporal artery to the opposite side
UPDATED Temperature, Pulse, Respiration, Blood
Pressure, Pain & SpO2 250 Practice Questions with
Verified Answers and Detailed Rationales
SECTION 1: TEMPERATURE ASSESSMENT AND REGULATION
1. The nurse is preparing to assess a patient's temperature. Which site provides the
most accurate core temperature?
• A. Oral
• B. Rectal
• C. Axillary
• D. Tympanic
Answer: B (Rectal)
Rationale: Rectal temperature is the most accurate core temperature because it reflects
the body's internal temperature. It is closest to core body temperature and is least
affected by external factors.
2. A nurse is assessing a patient's temperature orally. The patient has just
consumed hot coffee. How long should the nurse wait before taking the
temperature?
• A. 5 minutes
• B. 10 minutes
• C. 15-20 minutes
• D. 30 minutes
Answer: C (15-20 minutes)
Rationale: When taking an oral temperature, the patient should wait 15-20 minutes
,after eating or drinking hot or cold substances to allow the oral cavity to return to
baseline temperature.
3. Which temperature route is most commonly used in adults for routine
assessment?
• A. Rectal
• B. Axillary
• C. Oral
• D. Tympanic
Answer: C (Oral)
Rationale: The oral route is the most commonly used site for temperature assessment
in adults due to its accessibility, accuracy, and patient acceptance.
4. What is the normal range for oral temperature in adults?
• A. 95.0°F - 97.5°F
• B. 97.5°F - 99.5°F
• C. 98.6°F - 100.4°F
• D. 96.0°F - 98.0°F
Answer: B (97.5°F - 99.5°F)
Rationale: Normal oral temperature ranges from 97.5°F to 99.5°F (36.4°C to 37.5°C). The
average is 98.6°F (37°C). Individual variations occur based on time of day, age, and
activity level.
5. The nurse notes that a patient's axillary temperature is 97.2°F. What would the
nurse expect the oral temperature to be?
• A. 96.2°F
• B. 97.2°F
, • C. 98.2°F
• D. 99.2°F
Answer: C (98.2°F)
Rationale: Axillary temperatures are typically 0.5°F to 1°F lower than oral temperatures.
Therefore, an axillary temperature of 97.2°F would correspond to an oral temperature of
approximately 98.2°F. Axillary temperatures are the least accurate of all routes.
6. Which route of temperature measurement is contraindicated in patients with
ear infections or ear surgery?
• A. Oral
• B. Rectal
• C. Axillary
• D. Tympanic
Answer: D (Tympanic)
Rationale: Tympanic temperature measurement is contraindicated in patients with ear
infections, ear drainage, or recent ear surgery. It may also be inaccurate in patients with
cerumen impaction.
7. The nurse is caring for a patient with neutropenia. Which temperature route is
contraindicated?
• A. Oral
• B. Rectal
• C. Axillary
• D. Tympanic
Answer: B (Rectal)
Rationale: Rectal temperature measurement is contraindicated in patients with
neutropenia (low white blood cells), as it can cause mucosal trauma and introduce
, infection. It is also contraindicated in patients with rectal disorders, diarrhea, or recent
rectal surgery.
8. What is the normal range for tympanic temperature in adults?
• A. 97.5°F - 99.5°F
• B. 98.6°F - 100.6°F
• C. 96.4°F - 98.4°F
• D. 99.0°F - 101.0°F
Answer: B (98.6°F - 100.6°F)
Rationale: Tympanic temperatures are typically 0.5°F to 1°F higher than oral
temperatures. The normal range for tympanic temperature is 98.6°F to 100.6°F (37°C to
38.1°C).
9. Which of the following can affect oral temperature readings?
• A. Smoking
• B. Drinking cold liquids
• C. Recent exercise
• D. All of the above
Answer: D (All of the above)
Rationale: Smoking, drinking cold or hot liquids, and recent exercise can all affect oral
temperature readings. Patients should wait 15-20 minutes after any of these activities
before taking an oral temperature.
10. A nurse is assessing a patient's temperature using a temporal artery
thermometer. Which of the following is a correct technique?
• A. Place the probe directly on the temporal artery
• B. Scan the forehead from the temporal artery to the opposite side
