The nurse is using pulse oximetry to measure oxygen saturation in a 3-year-old girl. The nurse understands that falsely high readings may be associated with which situation or condition?
A) A non-secure connection
B) Cold extremities
C) Hypovolemia
D) Anemia
D
Response:
Falsely high readings may be associated with anemia. Falsely low readings may be associated with cold extremities, hypovolemia, and a non-secure connection.
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The nurse caring for oncology clients knows that which form of metastasis is the most common?
a. Bloodborne b. Direct invasion c. Lymphatic spread d. Via bone marrow
A patient is being prepared for impedance cardiography. Which information will the nurse provide?
1. "This technology will use ultrasound to measure your heart rate and blood flow." 2. "We are preparing to measure the oxygenation of your peripheral tissues." 3. "A catheter will be inserted into a vein in your neck." 4. "Electrodes will be placed on your neck and your lateral chest."
A patient reports a desire to stop smoking and asks what is available without a prescription to help with smoking cessation. The nurse tells the patient that which method is best?
a. Abrupt discontinuation to shorten withdrawal effects b. Nicotine replacement and 1-800-QUITNOW c. Nicotine replacement products tapered over a year d. Support groups without the use of medications
The most common vasodilator that relaxes or dilates the walls of the arteries to control angina pectoris is
A. nitroglycerin. B. iron. C. digoxin. D. aspirin.