Author Question: The patient has new-onset restlessness and confusion. Pulse rate is elevated, as is respiratory ... (Read 34 times)

folubunmi · **on:** Jul 22, 2018

The patient has new-onset restlessness and confusion. Pulse rate is elevated, as is respiratory rate. Oxygen saturation is 94.

The nurse ignores the pulse oximeter reading and calls the health care provider for orders because the pulse oximetry reading is inaccurate. Which factors can cause inaccurate pulse oximetry readings? (Select all that apply.)
a. O2 saturations (SaO2) > 70
b. Carbon monoxide inhalation
c. Hypothermic fingers
d. Intravascular dyes
e. Nail polish
f. Jaundice

Question 2

The nurse is assessing the patient and family for probable familial causes of the patient's hypertension. The nurse begins by analyzing the patient's personal history, as well as family history and current lifestyle situation.

Which findings will the nurse consider to be risk factors? (Select all that apply.)
a. Obesity
b. Cigarette smoking
c. Recent weight loss
d. Heavy alcohol intake
e. Regular exercise sessions

voltaire123 · **Reply #1 on:** Jul 22, 2018

Answer to Question 1

ANS: B, C, D, E, F
Inaccurate pulse oximetry readings can be caused by outside light sources, carbon monoxide (caused by smoke inhalation or poisoning), patient motion, jaundice, intravascular dyes (methylene blue), nail polish, artificial nails, metal studs, or dark skin. SpO2 is a reliable estimate of SaO2 when the SaO2 is over 70.

Answer to Question 2

ANS: A, B, D
Obesity, cigarette smoking, and heavy alcohol consumption are risk factors linked to hypertension. Weight loss and regular exercise can decrease the risk for hypertension.