Final Flashcards
Blood flows from the pulmonary veins into the
- right atrium.
- left atrium.
- right ventricle.
- left ventricle.
Left Atrium
A nurse is looking at an ECG and is measuring the time interval from the onset of atrial electrical activity to the onset of ventricular electrical activity. What is the nurse measuring?
- QRS complex
- QT interval
- PR interval
- Width of the P wave
PR interval
A person’s heart rate is reduced. What is happening physiologically?
1.Activation of the sympathetic nervous system
2.Stimulation of the parasympathetic nervous system
3 Stimulation of the cardioexcitatory system
4 Reduction in blood pressure, detected by the baroreceptors
Stimulation of the parasympathetic nervous system
Which finding will cause the resistance in blood vessels to be increased?
- Short length of the vessel
- Increased radial lumen
- Parallel vessel system
- Increased blood viscosity
increased blood viscosity
A nurse observes a “hot spot” from the injection of a radioactive solution. Which test is the nurse reviewing?
- Technetium scanning
- Coronary angiography
- Doppler study
- Echocardiogram
Technetium scanning
A person has a diagnosis of valvular regurgitation. What pathophysiologic process is the person experiencing?
The valves
1.are constricted and narrowed, impeding the forward
flow of blood.
2.fail to close completely, permitting the backflow of blood to continue.
3.have an inherited defect, such as thickening of the septal wall.
4 cause acute pericarditis and filling of the pericardial sac.
fail to close completely, permitting the backflow of blood to continue
Systolic heart failure is associated with the activation of the
- parasympathetic nervous system
- hypothalamic pituitary adrenal axis
- renin- angiotensin - aldosterone system
- antiduiretic horomone (ADH) vasopressin aldosterone system
Renin - angiotensin aldosterone system (RAS)
An individual has primary hypertension and recurrent stroke. Which drug should the nurse prepare to administer:
- Aldosterone agonists
- Beta activators
- Ace inhibitors
- Osmotic diuretics
ACE inhibiors
what conditions cause blood to more more viscous
polycythemia vera, clotting disorders, anything that changes size or shape of RBC
What are the symptoms of atherosclerosis?
chest pain or angina.
pain in your leg, arm, and anywhere else that has a blocked artery.
cramping in the buttocks while walking.
shortness of breath.
fatigue.
confusion, which occurs if the blockage affects circulation to your brain.
what conditions cause blood to be more viscous
polycythemia vera, clotting disorders, anything that changes RBC size like Sickle cell anemia
What are the symptoms of atherosclerosis?
chest pain or angina.
pain in your leg, arm, and anywhere else that has a blocked artery.
cramping in the buttocks while walking.
shortness of breath.
fatigue.
confusion, which occurs if the blockage affects circulation to your brain.
Conventional or major risk factors for CAD that are nonmodifiable include
1 advanced age,
(2) male gender or women after menopause, and
(3) family history
what is the main cause of cardiomyopathy
viral infections
most common type of hear failure is
left sided heart failure
