A Cardiovascular nurse is preparing to measure a client's level of oxygen saturation and observes edema of both hands and thickened toenails. The nurse should apply the pulse oximeter probe to which of the following locations?
Toe.
Earlobe.
Skin fold.
Finger.
The Correct Answer is B
Choice A rationale:
Applying the pulse oximeter probe to the toe is not the most appropriate location. While toe measurements can be used, the fingers are more commonly used due to their accessibility and accuracy. Edema in the hands could affect the accuracy of readings.
Choice B rationale:
The nurse should apply the pulse oximeter probe to the earlobe. This choice is correct because the earlobe is a well-vascularized and easily accessible area that provides accurate oxygen saturation measurements. Thickened toenails and edema of the hands might compromise readings in those locations.
Choice C rationale:
Applying the pulse oximeter probe to a skin fold is not a recommended site for oxygen saturation measurement. While there are various sites where pulse oximeters can be applied, the earlobe and finger are more suitable due to their consistent blood flow and accessibility.
Choice D rationale:
While applying the pulse oximeter probe to the finger is a common and acceptable practice, in this scenario, edema of the hands could affect the accuracy of the readings. The earlobe is a better choice as it is less likely to be affected by edema and can provide accurate readings.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Cyanosis - Cyanosis is a bluish discoloration of the skin and mucous membranes due to inadequate oxygenation of the blood. This is an objective sign that can be visually assessed, not based on the patient's description.
Choice B rationale:
Petechiae - Petechiae are small, pinpoint, red or purple spots on the skin caused by bleeding under the skin. Like cyanosis, this is a physical finding that can be observed directly.
Choice C rationale:
Dizziness - This is the correct choice. Dizziness is a subjective sensation that the patient experiences. It cannot be directly observed and relies on the patient's description of feeling unsteady, lightheaded, or having a spinning sensation.
Choice D rationale:
Blood pressure - Blood pressure is an objective measurement that can be taken using a blood pressure cuff and a stethoscope or automated device. It is not based on the patient's description and does not fall under subjective data.
Correct Answer is D
Explanation
Choice A rationale:
Applying petroleum jelly to the nares is not necessary in this situation. Oxygen therapy through a nasal cannula aims to deliver oxygen to the client's respiratory system. Applying petroleum jelly might interfere with the oxygen delivery and is not a standard practice.
Choice B rationale:
Removing the nasal cannula while the client eats reduces the oxygen supply during a time when the body's oxygen demand might increase due to the digestive process. It's important to maintain consistent oxygen therapy, even during meals.
Choice C rationale:
Attaching a humidifier bottle to the base of the flow meter is not necessary for oxygen therapy at 5 L/min via nasal cannula. Humidification is usually needed at higher oxygen flow rates to prevent drying of the mucous membranes.
Choice D rationale:
Securing the oxygen tubing to the bed sheet near the client's head is the correct action. This ensures that the tubing is not pulled or tugged during movement, maintaining a steady flow of oxygen. Placing it near the client's head prevents kinking or tangling of the tubing and allows the client to move without disrupting the therapy.
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