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NurseDive Free Nursing Practice Question
There are 2 types of parenteral nutrition, Total Parenteral Nutrition (TPN) and Peripheral Parenteral Nutrition (PPN). TPN must be administered using:
A. NGT
NGT (nasogastric tube) is used for enteral feeding, not parenteral nutrition. Enteral feeding involves delivering nutrients directly to the stomach or small intestine, bypassing the need for eating. This method is suitable for patients who have a functioning digestive system but cannot eat orally. Parenteral nutrition, on the other hand, involves delivering nutrients directly into the bloodstream.
B. Orally
Oral administration of nutrition involves consuming food or nutrients by mouth. This method is suitable for individuals who can eat and digest food normally. Parenteral nutrition bypasses the digestive system altogether and delivers nutrients directly into the bloodstream, making oral administration inappropriate for TPN.
C. Central Line
Central Line is the correct answer because Total Parenteral Nutrition (TPN) requires delivery of nutrients directly into a central vein, typically the superior vena cava. This is because TPN solutions are highly concentrated and can irritate smaller veins, leading to complications such as phlebitis. A central line allows for the safe administration of TPN, ensuring that the high osmolarity solution is rapidly diluted by the large volume of blood in the central veins.
D. Peripheral line
Peripheral line administration is used for Peripheral Parenteral Nutrition (PPN), not TPN. PPN can be delivered through a peripheral vein because it is less concentrated than TPN. Using a peripheral line for TPN is not appropriate due to the risk of complications from the high osmolarity of the TPN solution.
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Full Explanation
Choice A reason: NGT (nasogastric tube) is used for enteral feeding, not parenteral nutrition. Enteral feeding involves delivering nutrients directly to the stomach or small intestine, bypassing the need for eating. This method is suitable for patients who have a functioning digestive system but cannot eat orally. Parenteral nutrition, on the other hand, involves delivering nutrients directly into the bloodstream.
Choice B reason: Oral administration of nutrition involves consuming food or nutrients by mouth. This method is suitable for individuals who can eat and digest food normally. Parenteral nutrition bypasses the digestive system altogether and delivers nutrients directly into the bloodstream, making oral administration inappropriate for TPN.
Choice C reason: Central Line is the correct answer because Total Parenteral Nutrition (TPN) requires delivery of nutrients directly into a central vein, typically the superior vena cava. This is because TPN solutions are highly concentrated and can irritate smaller veins, leading to complications such as phlebitis. A central line allows for the safe administration of TPN, ensuring that the high osmolarity solution is rapidly diluted by the large volume of blood in the central veins.
Choice D reason: Peripheral line administration is used for Peripheral Parenteral Nutrition (PPN), not TPN. PPN can be delivered through a peripheral vein because it is less concentrated than TPN. Using a peripheral line for TPN is not appropriate due to the risk of complications from the high osmolarity of the TPN solution.
Similar Questions
What is the primary risk factor for colon cancer?
A. Alcohol consumption
While alcohol consumption is a known risk factor for colon cancer, it is not considered the primary risk factor. Excessive alcohol intake can increase the risk of developing colorectal cancer, but its impact is less significant compared to age.
B. Smoking
Smoking is another risk factor for colon cancer, and long-term tobacco use has been linked to an increased risk of developing colorectal cancer. However, it is not the primary risk factor. Smoking primarily affects the lungs but also has systemic effects that can contribute to various cancers, including colorectal cancer.
C. Chronic inflammatory
Chronic inflammatory conditions, such as inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, can increase the risk of colon cancer. Chronic inflammation can lead to cellular changes and damage in the colon, which may eventually result in cancer. However, age remains the most significant risk factor.
D. Age
Age is the primary risk factor for colon cancer. The risk of developing colorectal cancer increases significantly with age, with the majority of cases occurring in individuals over the age of 50. As people age, the likelihood of genetic mutations and cellular damage accumulates, increasing the risk of cancer development.
Full Explanation
Choice A reason: While alcohol consumption is a known risk factor for colon cancer, it is not considered the primary risk factor. Excessive alcohol intake can increase the risk of developing colorectal cancer, but its impact is less significant compared to age.
Choice B reason: Smoking is another risk factor for colon cancer, and long-term tobacco use has been linked to an increased risk of developing colorectal cancer. However, it is not the primary risk factor. Smoking primarily affects the lungs but also has systemic effects that can contribute to various cancers, including colorectal cancer.
Choice C reason: Chronic inflammatory conditions, such as inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, can increase the risk of colon cancer. Chronic inflammation can lead to cellular changes and damage in the colon, which may eventually result in cancer. However, age remains the most significant risk factor.
Choice D reason: Age is the primary risk factor for colon cancer. The risk of developing colorectal cancer increases significantly with age, with the majority of cases occurring in individuals over the age of 50. As people age, the likelihood of genetic mutations and cellular damage accumulates, increasing the risk of cancer development.
The pathophysiology of type 1 diabetes can best be described as:
A. Destruction of the pancreatic islet cells, which produce insulin.
Type 1 diabetes is characterized by the destruction of pancreatic islet cells (also known as beta cells) that produce insulin. This autoimmune process leads to a severe lack of insulin in the body. Insulin is essential for regulating blood glucose levels, and without it, glucose cannot enter the cells and remains in the bloodstream, leading to hyperglycemia. This destruction of insulin-producing cells is the fundamental defect in type 1 diabetes.
B. Resistance of insulin-sensitive tissues to insulin.
Resistance of insulin-sensitive tissues to insulin is a characteristic of type 2 diabetes, not type 1 diabetes. In type 2 diabetes, the body's cells become resistant to insulin, and the pancreas may eventually fail to produce enough insulin to overcome this resistance. This leads to elevated blood glucose levels, but the underlying mechanism is different from the autoimmune destruction seen in type 1 diabetes.
C. Stimulation by food intake of glucose production resulting in increased insulin production.
Stimulation by food intake of glucose production resulting in increased insulin production is not a defining feature of type 1 diabetes. While the intake of food does lead to glucose production and a subsequent need for insulin, this mechanism is part of normal physiology and is not specific to any type of diabetes. Type 1 diabetes specifically involves the lack of insulin production due to the destruction of the pancreatic beta cells.
D. Decreased production of releasing hormones by the hypothalamus.
Decreased production of releasing hormones by the hypothalamus is not related to the pathophysiology of type 1 diabetes. The hypothalamus plays a role in regulating various hormonal processes, but type 1 diabetes is primarily an autoimmune disorder affecting the pancreas. The destruction of insulin-producing beta cells in the pancreas is the key issue in type 1 diabetes.
Full Explanation
Choice A reason: Type 1 diabetes is characterized by the destruction of pancreatic islet cells (also known as beta cells) that produce insulin. This autoimmune process leads to a severe lack of insulin in the body. Insulin is essential for regulating blood glucose levels, and without it, glucose cannot enter the cells and remains in the bloodstream, leading to hyperglycemia. This destruction of insulin-producing cells is the fundamental defect in type 1 diabetes.
Choice B reason: Resistance of insulin-sensitive tissues to insulin is a characteristic of type 2 diabetes, not type 1 diabetes. In type 2 diabetes, the body's cells become resistant to insulin, and the pancreas may eventually fail to produce enough insulin to overcome this resistance. This leads to elevated blood glucose levels, but the underlying mechanism is different from the autoimmune destruction seen in type 1 diabetes.
Choice C reason: Stimulation by food intake of glucose production resulting in increased insulin production is not a defining feature of type 1 diabetes. While the intake of food does lead to glucose production and a subsequent need for insulin, this mechanism is part of normal physiology and is not specific to any type of diabetes. Type 1 diabetes specifically involves the lack of insulin production due to the destruction of the pancreatic beta cells.
Choice D reason: Decreased production of releasing hormones by the hypothalamus is not related to the pathophysiology of type 1 diabetes. The hypothalamus plays a role in regulating various hormonal processes, but type 1 diabetes is primarily an autoimmune disorder affecting the pancreas. The destruction of insulin-producing beta cells in the pancreas is the key issue in type 1 diabetes.
When pressure is applied over an edematous area, it forces fluid movement and leaves an indentation, the edema is referred to as:
A. Cushings
Cushing's is not related to this type of edema. Cushing's syndrome is a condition caused by prolonged exposure to high levels of cortisol, a hormone produced by the adrenal glands. It can lead to various symptoms, including weight gain, thinning skin, and high blood pressure, but it does not describe the specific characteristic of edema that leaves an indentation when pressed.
B. Swelling
Swelling is a general term that describes an increase in the size of a body part, often due to the accumulation of fluid. While edema is a type of swelling, the term "swelling" itself does not specifically refer to the characteristic of leaving an indentation upon pressure.
C. Dependent edema
Dependent edema occurs in areas of the body that are lower than the heart, often due to gravity. This type of edema can be seen in conditions like heart failure or prolonged immobility. However, it does not specifically refer to the characteristic of pitting, which is the ability to leave an indentation upon applying pressure.
D. Pitting edema
Pitting edema is the correct term for this condition. It occurs when pressure is applied to a swollen area, forcing fluid movement and leaving a visible indentation that persists for some time. Pitting edema is commonly seen in conditions such as congestive heart failure, liver disease, and deep vein thrombosis. The extent and duration of the indentation can help assess the severity of the edema.
Full Explanation
Choice A reason: Cushing's is not related to this type of edema. Cushing's syndrome is a condition caused by prolonged exposure to high levels of cortisol, a hormone produced by the adrenal glands. It can lead to various symptoms, including weight gain, thinning skin, and high blood pressure, but it does not describe the specific characteristic of edema that leaves an indentation when pressed.
Choice B reason: Swelling is a general term that describes an increase in the size of a body part, often due to the accumulation of fluid. While edema is a type of swelling, the term "swelling" itself does not specifically refer to the characteristic of leaving an indentation upon pressure.
Choice C reason: Dependent edema occurs in areas of the body that are lower than the heart, often due to gravity. This type of edema can be seen in conditions like heart failure or prolonged immobility. However, it does not specifically refer to the characteristic of pitting, which is the ability to leave an indentation upon applying pressure.
Choice D reason: Pitting edema is the correct term for this condition. It occurs when pressure is applied to a swollen area, forcing fluid movement and leaving a visible indentation that persists for some time. Pitting edema is commonly seen in conditions such as congestive heart failure, liver disease, and deep vein thrombosis. The extent and duration of the indentation can help assess the severity of the edema.