Which sequence best describes the direction of blood flow through the heart and lungs?
Vena cava → Right atrium → Right ventricle → Lungs → Pulmonary artery → Left atrium → Left ventricle.
Right atrium → Right ventricle → Pulmonary vein → Lungs → Pulmonary artery → Left atrium → Left ventricle.
Right atrium → Right ventricle → Pulmonary artery → Lungs → Pulmonary vein → Left atrium → Left ventricle.
Right atrium → Right ventricle → Lungs → Pulmonary vein → Pulmonary artery → Left atrium → Left ventricle → Vena cava.
The Correct Answer is C
Choice A rationale
This sequence is incorrect because it suggests that blood goes from the lungs to the pulmonary artery, which is not accurate. The pulmonary artery carries deoxygenated blood from the heart to the lungs.
Choice B rationale
This sequence is incorrect because it suggests that blood goes from the pulmonary vein to the lungs, which is not accurate. The pulmonary vein carries oxygenated blood from the lungs to the heart.
Choice C rationale
This sequence correctly describes the direction of blood flow through the heart and lungs. Deoxygenated blood enters the right atrium, goes to the right ventricle, then is sent to the lungs via the pulmonary artery. After picking up oxygen in the lungs, the blood returns to the heart via the pulmonary vein, entering the left atrium, then the left ventricle, from where it is pumped out to the rest of the body.
Choice D rationale
This sequence is incorrect because it suggests that blood goes from the pulmonary vein to the pulmonary artery, which is not accurate. The pulmonary vein carries oxygenated blood from the lungs to the heart, and the pulmonary artery carries deoxygenated blood from the heart to the lungs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Bleeding from the gums is a sign of excessive bleeding, which can be a side effect of thrombolytic therapy. Thrombolytic agents work by dissolving blood clots, but they can also interfere with the body’s normal clotting mechanism, leading to bleeding. If a patient experiences unusual or excessive bleeding, it may be necessary to stop the infusion of the thrombolytic agent.
Choice B rationale
An increase in blood pressure is not typically a reason to stop the infusion of a thrombolytic agent in a patient with an acute myocardial infarction. While blood pressure should be monitored closely during thrombolytic therapy, an increase in blood pressure is not a common side effect.
Choice C rationale
A nonsustained episode of ventricular tachycardia is not typically a reason to stop the infusion of a thrombolytic agent in a patient with an acute myocardial infarction. While arrhythmias can occur during a myocardial infarction, they are not a common side effect of thrombolytic therapy.
Choice D rationale
A decreased level of consciousness can be a sign of many serious conditions, including bleeding in the brain. However, it is not typically a reason to stop the infusion of a thrombolytic agent unless it is accompanied by other signs of excessive bleeding.
Correct Answer is B
Explanation
Choice A rationale
While it’s important to inquire about an allergy to iodine in a patient who has undergone an angiogram, it’s not typically the priority for assessing and documenting for this patient after the procedure. An allergy to iodine would be more relevant before the procedure, as iodine-based contrast dye is often used during an angiogram.
Choice B rationale
Checking peripheral pulses in the affected leg is typically a priority when caring for a patient who has undergone an angiogram. This is because the procedure involves inserting a catheter into a blood vessel in the leg. Checking the peripheral pulses can help assess for potential complications such as a blood clot or decreased blood flow to the leg.
Choice C rationale
Monitoring for decreased blood pressure is important in a patient who has undergone an angiogram, but it’s not typically the priority for assessing and documenting for this patient after the procedure. While changes in blood pressure can occur after any medical procedure, other assessments such as checking peripheral pulses in the affected leg are typically more directly related to potential complications of an angiogram.
Choice D rationale
Tracking fluid intake is an important part of overall patient care, but it’s not typically the priority for assessing and documenting for a patient who has undergone an angiogram. Other assessments such as checking peripheral pulses in the affected leg are typically more directly related to potential complications of an angiogram.
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