Practice Question
A nurse is preparing to measure a client's oxygen saturation and notes edema of the client's hands and thickened toenails. The nurse should apply the pulse oximeter probe to which of the following locations?
Answer Choices:
Correct Answer:
Earlobe
Rationale:
💎 The earlobe is ideal for measuring oxygen saturation when the fingers or toes are affected by edema, poor circulation, or nail thickening, as these conditions interfere with light transmission.
💎 The earlobe has good perfusion and is less affected by peripheral vasoconstriction, providing a more accurate SpO₂ reading.
💎 Other common sites like fingers or toes can give false low readings due to swelling or nail deformities.
💎 The probe should be applied securely but gently to ensure optimal sensor contact and stable waveforms.
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This question is from Custom Fundamentals Midterm Exam Fall 2025 which contains 73 questions.
More Questions from This Exam
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Answer Choices:
A. Place a surgical mask on the client prior to exiting the room.
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C. Have the transport personnel wear an N-95 mask when taking the client to radiology.
D. Cover a wheelchair with a sterile drape for the client to sit on.
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Answer Choices:
A. Clamp the chest tubes if it becomes disconnected
B. Maintain the drainage container below the level of the client's chest
C. Empty the collection container every shift.
D. Add tap water as needed to the suction control chamber.
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Answer Choices:
A. Unbroken skin with un-blancheable erythema
B. A deep crater without visible bone, tendon, or muscle
C. A shallow, ruptured or intact skin blister without slough
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Answer Choices:
A. Wrap the blood pressure cuff snugly around the arm.
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Which of the following actions should be taken immediately after recognizing a medication error to ensure patient safety?
Answer Choices:
A. Dispose of the incorrect medication immediately to avoid further mistakes.
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Question Details
- Category: RN Nursing Exam(s)
- Subcategory: ATI Exam(s)
- Domain: RN ATI Fundamentals of Nursing
- Answer Choices: 4