ATI RN
Oxygen Cycle Questions and Answers Questions
Question 1 of 5
Name two processes responsible for producing oxygen in nature.
Correct Answer: A
Rationale: Photosynthesis (by plants) and photodissociation (in the upper atmosphere) produce oxygen in nature, as listed.
Question 2 of 5
Roberto San Andres, A new nurse in the hospital is about to administer oxygen on patient with Respiratory distress. As his senior nurse, you should intervene if Roberto will:
Correct Answer: B
Rationale: Placing a non-rebreather mask before turning on oxygen delays delivery and risks rebreathing CO2, requiring intervention.
Question 3 of 5
Which of the following is true about an individual's caloric needs?
Correct Answer: C
Rationale: Cold weather increases BMR as the body works to maintain temperature, thus increasing caloric needs.
Question 4 of 5
Which hematocrit value is expected in a dehydrated male client?
Correct Answer: A
Rationale: Dehydration increases hematocrit due to hemoconcentration; 67% is elevated (normal male range: 40-50%).
Question 5 of 5
The nurse is browsing the chart of the patient and notes a normal serum lipase level. Which of the following is a normal serum lipase value?
Correct Answer: C
Rationale: Normal serum lipase levels are typically 0-160 U/L, with 200 U/L being an upper-normal value in some labs.