ATI RN
Cardiovascular System Questions and Answers Quizlet Questions
Question 1 of 5
The instrument that is used to measure blood pressure
Correct Answer: C
Rationale: A sphygmomanometer (C) measures blood pressure with a cuff and gauge. Stethoscope (A) aids listening, ECG (B) records electrical activity, oximeter (D) measures oxygen.
Question 2 of 5
Which of the following situations could result in maternal antibodies attacking fetal blood cells during a second pregnancy?
Correct Answer: B
Rationale: Rh-negative mom (B) can form anti-Rh antibodies after an Rh-positive first pregnancy, attacking an Rh-positive fetus in a second pregnancy.
Question 3 of 5
Anemia is defined as
Correct Answer: D
Rationale: Anemia (D) is reduced oxygen capacity due to low RBCs/hemoglobin.
Question 4 of 5
The blood cell with the shortest life span is the:
Correct Answer: C
Rationale: Neutrophils (C) live ~1-2 days, shortest among options.
Question 5 of 5
In a tube of centrifuged blood, the order of substances from top to bottom would be:
Correct Answer: C
Rationale: Centrifuged blood layers: plasma (top), buffy coat (WBCs/platelets), RBCs (bottom, C).