A nurse is preparing to obtain a capillary blood specimen from a client. Which of the following actions should the nurse take? (Select all that apply.)
Squeeze the client's finger until a blood drop forms.
Apply clean gloves.
Prick the side of the client's finger.
Elevate the client's hand above the level of the heart.
Cleanse the client's finger with an iodine swab.
Correct Answer : B,C,E
A. Squeezing the client's finger until a blood drop forms can result in hemolysis and inaccurate results; instead, gentle milking or massaging of the finger is recommended.
B. Applying clean gloves is necessary to maintain infection control practices.
C. Pricking the side of the client's finger is the appropriate technique for obtaining a capillary blood specimen.
D. Elevating the client's hand above the level of the heart is not necessary and may impede blood flow.
E. Cleansing the client's finger with an iodine swab helps to disinfect the area prior to obtaining the blood specimen.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Nail polish can interfere with the accuracy of pulse oximetry readings by absorbing or
reflecting light, leading to falsely low oxygen saturation readings. It's essential to remove nail polish or acrylic nails from the finger used for pulse oximetry to obtain accurate results.
B. While an elevated hemoglobin level may affect the oxygen-carrying capacity of the blood, it does not directly influence the accuracy of pulse oximetry readings.
C. Fever may affect oxygen saturation levels indirectly by increasing metabolic demand or
respiratory rate, but it does not directly interfere with the accuracy of pulse oximetry readings.
D. Wearing a ring does not typically interfere with pulse oximetry readings unless the ring is very tight and impairs blood flow to the finger. However, nail polish is a more significant
concern for accurate readings.
Correct Answer is D
Explanation
A. Increasing protein intake is not directly related to preventing orthostatic hypotension. While adequate nutrition is essential for overall health and healing postoperatively, it does not
specifically address the risk of orthostatic hypotension.
B. Using an incentive spirometer is beneficial for promoting lung expansion and preventing respiratory complications after surgery but does not directly address orthostatic hypotension.
C. Performing regular isometric exercises may help prevent muscle atrophy and maintain
strength during periods of immobility but does not specifically address orthostatic hypotension.
D. Dangling the legs over the side of the bed before standing helps the body gradually adjust to an upright position, reducing the risk of orthostatic hypotension by allowing the cardiovascular system to acclimate to changes in posture.
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