ATI LPN
Cardiovascular Multiple Choice Questions and Answers Questions
Question 1 of 5
Which valve below prevents blood from flowing back into the right ventricle?
Correct Answer: C
Rationale: The pulmonary semilunar valve is located at the base of the pulmonary trunk and prevents backflow of blood into the right ventricle after contraction.
Question 2 of 5
There are two umbilical arteries and one umbilical vein.
Correct Answer: A
Rationale: Fetal circulation includes two umbilical arteries and one umbilical vein.
Question 3 of 5
The heart begins to beat regularly:
Correct Answer: A
Rationale: The heart starts beating around the fourth week of fetal development.
Question 4 of 5
Which of the following statements is not true of the location of the heart?
Correct Answer: D
Rationale: All statements about the location of the heart provided here are true.
Question 5 of 5
An increase in total plasma volume results from the:
Correct Answer: D
Rationale: Antidiuretic hormone and aldosterone mechanisms both contribute to increased plasma volume.