PRN 1520 Pathophysiology EXAM 3 at South College
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Free PRN 1520 Pathophysiology EXAM 3 at South College Questions
A patient states he often has chest pain when he is exercising. The pain goes away with rest and lasts less than 15 minutes. The nurse understands that the patient is experiencing:
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A myocardial infarction
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Stable angina
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Unstable angina
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Myocarditis
Explanation
Stable angina is chest pain that occurs during physical exertion or stress, often related to increased oxygen demand by the heart. The pain typically resolves with rest and is usually brief, lasting less than 15 minutes. This type of angina is predictable and does not cause lasting damage to the heart. It occurs when the heart's oxygen supply temporarily cannot meet its increased demand due to narrowed coronary arteries but is relieved with rest.
A patient arrives at the emergency department with reports of pain in the right upper quadrant of the abdomen after eating a high-fat meal. The patient states that the pain radiates to the back. No changes are noted on the electrocardiogram (ECG) and cardiac enzymes are normal. The nurse suspects this patient is experiencing:
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A myocardial infarction
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Appendicitis
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Gastroesophageal reflux
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Cholecystitis
Explanation
Cholecystitis is the inflammation of the gallbladder, typically caused by the presence of gallstones. The classic symptoms include right upper quadrant pain that is often triggered or worsened after eating a high-fat meal, as fat stimulates the gallbladder to contract. The pain may radiate to the back or right shoulder. The absence of ECG changes and normal cardiac enzymes suggest that the pain is not due to a myocardial infarction (heart attack), making cholecystitis the most likely diagnosis.
A patient has been diagnosed with secondary hypertension. The nurse understands that secondary hypertension:
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Leads to extensive organ damage in most cases.
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Is known as the "silent killer."
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Will resolve when the underlying condition is treated.
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Has no known cause.
Explanation
Secondary hypertension is high blood pressure caused by an underlying health condition such as kidney disease, hormonal disorders, or medication use. The key characteristic of secondary hypertension is that it has a known cause. Once the underlying condition (like treating kidney disease or discontinuing a medication) is addressed, the blood pressure can often be controlled or return to normal, resolving the hypertension.
Which finding indicates the client may have Alzheimer's disease?
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Visual hallucinations
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Progressive memory loss and behavioral changes
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Tremors and bradykinesia
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Sudden onset of confusion
Explanation
Alzheimer's disease is a progressive neurodegenerative disorder that primarily affects memory, cognition, and behavior. The hallmark symptoms of Alzheimer's include progressive memory loss (especially short-term memory) and behavioral changes, such as confusion, personality shifts, and difficulty with problem-solving or planning. These symptoms develop slowly and worsen over time. The gradual onset and progression of these cognitive and behavioral issues are indicative of Alzheimer's disease.
A patient is experiencing low blood pressure (hypotension). The nurse understands that factors that may contribute to hypotension include which of the following? (Select All That Apply)
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Decreased cardiac output
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High fiber diet
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Dehydration
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High sodium intake
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Blood loss
Explanation
A. Decreased cardiac output
A decreased cardiac output means the heart is not pumping enough blood to meet the body's demands, leading to low blood pressure (hypotension). Conditions such as heart failure or severe arrhythmias can reduce cardiac output and contribute to hypotension.
C. Dehydration
Dehydration can lead to a decrease in blood volume, which lowers blood pressure. When the body loses fluids (due to vomiting, diarrhea, or insufficient fluid intake), the heart has less fluid to pump, causing hypotension.
E. Blood loss
Significant blood loss (due to trauma, surgery, or internal bleeding) reduces the total blood volume, leading to hypovolemic shock and hypotension. With less blood circulating, the heart cannot maintain adequate blood pressure.
A nursing student is reviewing the anatomy of the heart. The student knows that the tricuspid valve is located between the:
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Left ventricle and aorta
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Right atrium and right ventricle
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Right ventricle and pulmonary artery
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Left atrium and left ventricle
Explanation
The tricuspid valve is one of the four main valves in the heart. It is located between the right atrium and right ventricle. This valve regulates blood flow from the right atrium into the right ventricle and prevents backflow of blood into the atrium during ventricular contraction.
The nurse understands that autodigestion of pancreatic tissue in pancreatitis results in which of the following? Select all that apply.
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Bleeding
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Tissue necrosis
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Esophageal varices
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Right lower quadrant pain
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Inflammation
Explanation
A. Bleeding
In pancreatitis, the process of autodigestion occurs when pancreatic enzymes, such as lipase and proteases, begin to break down the pancreatic tissue itself. This digestive action can damage blood vessels in the pancreas, leading to bleeding. The rupture of blood vessels causes internal hemorrhage, which may worsen the patient’s condition and contribute to further complications, such as hypovolemic shock.
B. Tissue necrosis
Tissue necrosis happens as a result of autodigestion in pancreatitis. The enzymes released by the pancreas start breaking down the tissue, leading to the death of the cells. This necrosis can involve the pancreas itself and spread to nearby tissues and organs. In severe cases, necrosis may lead to complications such as infections, sepsis, or organ failure.
E. Inflammation
The autodigestion of pancreatic tissue triggers an inflammatory response. The breakdown of pancreatic tissue by digestive enzymes causes inflammation within the pancreas and potentially other parts of the abdomen. This inflammation leads to symptoms such as severe abdominal pain, swelling, and fever. The systemic inflammation can also increase the risk of complications such as sepsis and multi-organ failure.
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:
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The post-ictal phase
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A behavioral disorder
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An absence seizure
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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 is admitted with a stroke that occurred in the left hemisphere of the brain. The nurse would expect the patient to have weakness or paralysis:
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On neither side of the body.
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On both sides of the body.
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On the right side of the body.
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On the left side of the body.
Explanation
The left hemisphere of the brain controls the right side of the body due to the crossing of motor pathways in the brainstem (known as contralateral control). Therefore, if a stroke occurs in the left hemisphere, it will typically result in weakness or paralysis on the right side of the body. This can affect both motor functions and sensation.
When explaining cholesterol levels to a patient, the nurse understands that:
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The goal of treatment is to have high levels of very low-density lipoprotein (VLDL).
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Patients should aim to have low levels of high-density lipoprotein (HDL).
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Low-density lipoprotein (LDL) is considered to be the good cholesterol.
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High-density lipoprotein (HDL) may help protect the heart.
Explanation
High-density lipoprotein (HDL) is often referred to as "good cholesterol" because it helps remove excess cholesterol from the bloodstream and transports it to the liver for processing and excretion. High levels of HDL are associated with a lower risk of heart disease, as it aids in preventing the buildup of plaque in the arteries, which can lead to atherosclerosis and other cardiovascular conditions.
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