ATI LPN
Cardiovascular NCLEX Questions Questions
Question 1 of 5
With regards to CSF and the blood brain barrier, which is NOT true?
Correct Answer: B
Rationale: Creatinine concentration in CSF is lower than in plasma due to the blood-brain barrier's selective permeability.
Question 2 of 5
Identify the circuit pumps blood from the heart, to the lungs, and back to the heart.
Correct Answer: C
Rationale: The pulmonary circuit is responsible for pumping blood from the heart to the lungs for oxygenation and back to the heart.
Question 3 of 5
Which of the following is NOT true of atherosclerosis?
Correct Answer: B
Rationale: Atherosclerosis is not directly caused by Helicobacter pylori; it is linked to factors like smoking and arterial injury.
Question 4 of 5
Contraction of skeletal muscles will_____ venous return, thus______ stroke volume.
Correct Answer: C
Rationale: Skeletal muscle contraction compresses veins, aiding venous return to the heart. This increases preload and, according to Frank-Starling's law, enhances stroke volume.
Question 5 of 5
The respiratory pump_____ the pressure difference between the abdominal region and the thoracic region thus leading to a(n)______ in venous return.
Correct Answer: D
Rationale: The respiratory pump enhances venous return by increasing the pressure gradient between the abdomen and thorax during inspiration.