HCS 214 Week 2 Week Two Knowledge Check

Complete the University of Phoenix Material: Week Two Knowledge Check

1.

Identify a type of connective tissue that is composed of a variety of cells and has a fluid-like component called plasma.

Blood

Lymph

Urine

Serotonin

2.

Which of the following statements is true of blood vessels?

The blood vessels that carry blood back to the heart are called arteries.

Veins keep branching out into smaller and smaller blood vessels, which ultimately become capillaries.

At the cellular level, the exchange of gases takes place in the capillaries.

The largest of the veins in the cardiovascular system are called venules.

3.

Identify a difference between veins and arteries.

There are a greater number of arteries in the cardiovascular system than veins.

The walls of the veins are thinner than those of the arteries.

Veins transport blood under a higher pressure than do arteries.

The capacity of arteries to hold blood is much greater than that of veins.

4.

Which of the following is responsible for converting the fibrinogen dissolved in the blood into fibrin during the process of blood coagulation?

Troponin I

Vitamin K

Thromboplastin

Thrombin

5.

Identify an accurate statement about the structure of the human heart.

The base of the heart is more proximal to the head than the apex of the heart.

The upper chambers of the heart are called ventricles.

The heart is located right below the diaphragm.

6.

Saul is rushed to the hospital after losing control at the wheel and crashing his car into a tree. His sister, Adiela, arrives at the hospital on hearing the news of the accident. The doctors ask Adiela her blood type as Saul is in need of an immediate blood transfusion. Saul’s blood type is AB-positive and Adiela claims that her blood type is A-positive. The doctors decide to proceed with the blood transfusion using Adiela’s blood. Why have the doctors agreed on using Adiela’s blood for the transfusion?

Because Saul’s blood plasma contains anti-A antibodies

Because Saul’s blood plasma contains neither A nor B antibodies

Because Adiela’s blood plasma does not contain anti-B antibodies

Because Adiela’s blood plasma contains both A and B antibodies

7.

What is the name given to the condition that arises due to the abnormal conduction or generation of electrical impulses in the heart?

Arrhythmia

Myocardial infarction

Peripheral vascular disease

Endocarditis

8.

Identify an accurate statement about right-sided heart failure.

This condition is a result of the muscles on the left side of the heart becoming too large to pump blood efficiently.

People suffering from this condition generally have extended neck veins.

This condition does not affect the size of the liver or spleen.

People suffering from this condition are less likely than others to be diagnosed with lung diseases.

9.

Eric has been diagnosed with a potentially life-threatening heart condition. Prior to diagnosis, Eric’s doctor, Ricardo, observed that the damaged muscle fibers in the left ventricle of Eric’s heart were having an adverse effect on its pumping efficiency. He also noticed that this decreased pumping efficiency was responsible for a buildup of vascular pressure and a subsequent leakage of fluid from the blood vessels into the surrounding lung tissue. Based on the information provided in this scenario, determine the disease from which Eric is suffering.

Congestive heart failure

Endocarditis

Arteriosclerosis

Cardiac tamponade

10.

Identify the blood condition in which there is a less than normal number of circulating red blood cells and abnormal or deficient hemoglobin.

Anemia

Polycythemia

Thrombocytopenia

Hematoma

11.

Identify an accurate statement about clotting disorders.

Thrombocytopenia is a condition that develops due to an abnormally high platelet count.

Coronary thrombosis can partially or totally block blood flow to a portion of the heart.

Hemophilia is a condition that is characterized by the unwanted formation of clots.

Coronary thrombosis does not increase an individual’s susceptibility to heart attacks.

12.

Chris, a diabetic, often complains of experiencing cramping in his legs whenever he engages in activities that involve a considerable amount of physical exertion. He experiences relief only when he rests his legs. On examination, Chris’s doctor, Harry, observes that the cramping is a result of insufficient blood supply to the legs. He suspects a buildup of plaque in the arteries in Chris’s legs. What is the most probable diagnosis of Chris’s condition?

Peripheral vascular disease

Hematoma

Aneurysm

Thrombocytopenia

13.

Which of the following statements is true about angiography?

The blood vessels can be clearly observed in an angiographic x-ray.

The process of performing an angiogram does not involve the use of radiocontrast agents.

An angiogram is most commonly used to visualize the blood flow in the coronary arteries.

An angiogram cannot be used to detect blood vessel problems.

14.

In an electrocardiogram, what does the P wave represent?

It represents the depolarization of the atria right before they contract.

It represents the depolarization of the ventricles right before they contract.

It represents the repolarization of the atria when they are at rest before the next contraction.

It represents the repolarization of the ventricles when they are at rest before the next contraction.

15.

Dr. Gerome wants to record his patient’s blood pressure. He places an inflatable cuff around his patient’s arm and a stethoscope over the brachial artery. While inflating the cuff, he listens to the pulse using the stethoscope. He stops inflating the cuff when the pressure rises to about 30 millimeters of mercury and when he can no longer hear the pulse. Then, he releases the valve to allow the cuff to slowly deflate and listens to the brachial artery. He starts hearing the pulse again. As the cuff pressure drops, the sound of the pulse decreases and then disappears. At this point, which of the following is true?

At this point, the cuff pressure is equivalent to the arterial pressure when the heart is in diastole.

At this point, the cuff pressure is equivalent to the arterial pressure when the heart contracts.

After this point, the actual systolic BP can be recorded.

Before this point, the actual diastolic BP can be recorded.

16.

Blood urea nitrogen (BUN) testing is often used as a diagnostic test to test the function of a particular organ. Identify the organ.

Uterus

Kidney

Spleen

Pancreas

17.

Which of the following is true of blood testing?

All blood samples are obtained from the arteries.

To determine the amount of oxygen in the body, arterial blood is collected and tested.

It requires a lesser amount of skill to obtain blood from the arteries than blood from the veins.

Problems with white blood cells cannot be determined through blood testing.

18.

Joana, a middle-aged woman, has never experienced any major health problems. For the last two months, she has been experiencing mild pain and discomfort in her chest on heavy physical exertion. During these times, she finds it difficult to breathe. On consulting a cardiologist, Joana is advised to undergo a certain test. The test requires her to walk on a treadmill at varying speeds, during which time her heart is monitored by an electrocardiograph (ECG) to detect any arrhythmias or abnormalities in her heartbeat. Based on the information provided in this scenario, identify the kind of test being conducted.

Polysomnography

Holter monitoring

Stress testing

Endoscopy