PRN 1520 Pathophysiology EXAM 3 at South College
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Free PRN 1520 Pathophysiology EXAM 3 at South College Questions
Which findings are consistent with right-sided heart failure? Select All That Apply.
- Orthopnea
- Ascites
- Dependent edema
- Pulmonary congestion
- Hepatomegaly
Explanation
B. Ascites
Ascites is the accumulation of fluid in the abdomen and is a common finding in right-sided heart failure. When the right ventricle fails, blood backs up into the systemic circulation, leading to fluid buildup in the abdomen.
C. Dependent edema
Dependent edema refers to swelling in the lower extremities, such as the legs and feet. It is caused by the backup of blood into the veins, which occurs in right-sided heart failure, leading to fluid retention in the lower parts of the body.
E. Hepatomegaly
Hepatomegaly (enlargement of the liver) is often seen in right-sided heart failure due to the backup of blood in the veins, including those that drain the liver. This causes congestion in the liver, leading to its enlargement.
An inflammation of the innermost lining of the heart, that includes the heart valves, is called:
- Myocarditis
- Pericarditis
- Thrombophlebitis
- Endocarditis
Explanation
Endocarditis is the inflammation of the endocardium, the innermost layer of the heart that lines the heart chambers and valves. It is most commonly caused by infection, often from bacteria that enter the bloodstream and attach to the heart valves. Endocarditis can lead to serious complications, such as valve damage and blood clots, if not treated promptly.
The term "preload" refers to:
- The amount of blood returning to the heart that stretches the ventricles before contraction.
- The pressure within the arteries during relaxation.
- The resistance the left ventricle must overcome to eject blood.
- The rate at which the heart beats per minute.
Explanation
Preload refers to the volume of blood returning to the heart and filling the ventricles during diastole (the relaxation phase of the heart cycle). This increased blood volume stretches the ventricles and determines the initial degree of muscle stretch (or tension) before the heart contracts. The more the ventricles are filled, the greater the stretch, which increases the force of the subsequent contraction (this is known as the Frank-Starling law of the heart). Preload is an important factor in cardiac output and is influenced by venous return and blood volume.
A nurse working in a neurological unit of a hospital is providing care to a patient who had a seizure 1 hour ago. The patient has been sleeping and is difficult to arouse since having the tonic-clonic seizure. The nurse would document this behavior as:
- The post-ictal phase
- A behavioral disorder
- An absence seizure
- An aura
Explanation
The post-ictal phase refers to the period of recovery following a seizure. During this phase, a patient may experience confusion, lethargy, difficulty arousing, headache, or sleepiness. This phase can last for minutes to hours, depending on the individual and the severity of the seizure. The patient's difficulty in being aroused and sleeping after the tonic-clonic seizure is characteristic of the post-ictal state.
A patient presents to the emergency department with a stroke. The patient appears to be having difficulty with hearing and emotional behavior. The nurse would suspect that which lobe of the brain was affected by the stroke?
- Frontal
- Temporal
- Parietal
- Occipital
Explanation
The temporal lobe is primarily responsible for processing auditory information (hearing) and regulating emotions through structures like the amygdala and hippocampus. Damage to the temporal lobe can result in hearing difficulties and changes in emotional behavior, both of which are consistent with the symptoms described in the patient. Additionally, the temporal lobe is involved in memory and language processing.
A client presents with yellowing of the eyes and skin. Which of the following should the nurse evaluate as a potential cause of this condition?
- Cirrhosis
- Diverticulosis
- Appendicitis
- Ulcerative colitis
Explanation
The yellowing of the eyes and skin is known as jaundice, and it is most commonly caused by the accumulation of bilirubin in the blood. Bilirubin is a byproduct of red blood cell breakdown, and when the liver is unable to process or excrete it properly, it builds up, resulting in jaundice. Cirrhosis, which is scarring of the liver due to chronic liver damage (often from alcohol use, hepatitis, or fatty liver disease), impairs the liver’s ability to filter bilirubin, leading to its accumulation. The liver damage in cirrhosis can obstruct bile flow, further contributing to the development of jaundice.
A client presents with inflamed small pouches in the colon lining. Which condition is most likely responsible for these symptoms?
- Appendicitis
- Ulcerative colitis
- Diverticulitis
- Gastritis
Explanation
Diverticulitis refers to the inflammation of small pouches, called diverticula, that can form in the colon wall, typically due to increased pressure within the colon. These pouches can become inflamed or infected, leading to symptoms such as abdominal pain (usually in the lower left quadrant), fever, nausea, and changes in bowel movements. Diverticulitis is a complication of diverticulosis, a condition where these pouches are present but not necessarily inflamed.
A patient reports a sudden, severe headache and begins vomiting. The patient states, "This is the worst headache I have ever had in my whole life." The patient quickly becomes unresponsive. The nurse recognizes that the patient is likely experiencing:
- Multiple sclerosis
- A hemorrhagic stroke
- A seizure
- An ischemic stroke
Explanation
A hemorrhagic stroke occurs when a blood vessel in the brain ruptures, leading to bleeding (hemorrhage) within the brain. The patient’s symptoms of a sudden, severe headache (often described as the "worst headache" ever experienced), vomiting, and rapid loss of consciousness are typical of this type of stroke. The increase in intracranial pressure due to the bleeding can cause these symptoms. Hemorrhagic strokes are a medical emergency and require immediate attention to manage the bleeding and prevent further damage to brain tissue.
The term used to describe the relaxation of the myocardium to allow ventricles to fill with blood is:
- Diastole
- Stroke volume
- Systole
- Afterload
Explanation
Diastole refers to the relaxation phase of the cardiac cycle, during which the myocardium (heart muscle) relaxes, allowing the ventricles to fill with blood from the atria. This phase is crucial for ensuring that the heart chambers have sufficient blood volume before the next contraction (systole). During diastole, the heart is at rest and prepares for the next phase of pumping blood out of the ventricles.
Perforation of the gastric wall as a result of severe peptic ulcer disease (PUD) may result in which complication?
- Pancreatitis
- Hemorrhage
- Cholelithiasis
- Gastritis
Explanation
Perforation of the gastric wall occurs when a severe peptic ulcer (PUD) erodes through the stomach or duodenal lining, leading to the leakage of gastric contents into the abdominal cavity. This can cause peritonitis, a life-threatening infection of the peritoneum, which can also result in severe hemorrhage. The ulceration can damage blood vessels, leading to internal bleeding. This bleeding can be massive and requires immediate medical intervention, often in the form of surgery, to control the hemorrhage and prevent further complications.
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