Total Parenteral Nutrition TPN-IV Quiz

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Total Parenteral Nutrition TPN-IV Quiz - Quiz

Get ready for this "Total Parenteral Nutrition TPN-IV Quiz." Parenteral nutrition is the feeding of nutritional products to a person intravenously, bypassing the usual process of eating and digestion. It is used to help people who can't or shouldn't get their core nutrients from food; the person gets to receive nutritional formulae that contain nutrients and dietary minerals. Test your understanding of this by taking the quiz below. Best of luck to you!


Questions and Answers
  • 1. 

    TPN is the provision of nutrients intravenously in sufficient amounts to:

    • A.

      Achieve catabolism

    • B.

      Generate the formation of ketone bodies

    • C.

      Achieve anabolism

    • D.

      Create necessary branched-chain amino acids to stimulate hyperosmolar syndrome

    Correct Answer
    C. Achieve anabolism
    Explanation
    TPN, or total parenteral nutrition, is a method of providing nutrients directly into the bloodstream when a person is unable to consume food orally. The purpose of TPN is to support the body's nutritional needs and promote anabolism, which is the process of building and repairing tissues. By providing essential nutrients such as carbohydrates, proteins, fats, vitamins, and minerals, TPN helps to maintain or restore the body's nutritional status and support growth and healing. Therefore, the correct answer is "achieve anabolism."

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  • 2. 

    Which of the following are common indicators for TPN therapy?

    • A.

      Coma, citrate toxicity, and bowel surgery

    • B.

      Renal failure, prolonged ileus, and gastrocutaneous fistulas

    • C.

      Hepatic failure, hypermetabolic states, and malabsorption of enteral therapy

    • D.

      Filtration, multiple trauma, and conditions requiring bowel rest

    Correct Answer
    C. Hepatic failure, hypermetabolic states, and malabsorption of enteral therapy
    Explanation
    The correct answer is hepatic failure, hypermetabolic states, and malabsorption of enteral therapy. TPN therapy, or total parenteral nutrition, is a method of providing nutrition intravenously to patients who are unable to consume food orally or through the gastrointestinal tract. Hepatic failure refers to the liver's inability to function properly, which can lead to malnutrition and the need for TPN therapy. Hypermetabolic states, such as severe burns or trauma, can increase the body's metabolic rate and require additional nutritional support. Malabsorption of enteral therapy occurs when the gastrointestinal tract is unable to absorb nutrients properly, necessitating TPN therapy.

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  • 3. 

    What is the most common carbohydrate used for TPN?

    • A.

      Dextrose

    • B.

      Fructose

    • C.

      Invert sugar

    • D.

      Lactose

    Correct Answer
    A. Dextrose
    Explanation
    Dextrose is the most common carbohydrate used for Total Parenteral Nutrition (TPN) because it is easily absorbed by the body and provides a quick source of energy. It is a simple sugar that can be metabolized by all cells in the body and is commonly used in medical settings to provide nutrition to patients who are unable to eat or digest food orally. Fructose, invert sugar, and lactose are not as commonly used in TPN as dextrose.

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  • 4. 

    What is the source of protein used in TPN?

    • A.

      Alpha globulins

    • B.

      Casein amino acids

    • C.

      Free amino acids

    • D.

      Immunoglobulins

    Correct Answer
    C. Free amino acids
    Explanation
    The source of protein used in TPN (Total Parenteral Nutrition) is free amino acids. TPN is a method of delivering nutrients directly into the bloodstream when a person is unable to consume food orally. Free amino acids are the building blocks of protein and can be easily absorbed by the body. By providing free amino acids, TPN ensures that the patient receives the necessary protein for their nutritional needs. Alpha globulins, casein amino acids, and immunoglobulins are not typically used as protein sources in TPN.

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  • 5. 

    What substances are generally added to total parenteral nutrition solutions?

    • A.

      Electrolytes, trace elements, and vitamins

    • B.

      Antifungal agents, electrolytes, and vitamins

    • C.

      Electrolytes, antihistamine antagonists, and vitamins

    • D.

      Citrate preservative, electrolytes, and vitamins

    Correct Answer
    A. Electrolytes, trace elements, and vitamins
    Explanation
    Total parenteral nutrition (TPN) is a method of providing nutrients directly into the bloodstream when a person is unable to eat or absorb nutrients through the digestive system. TPN solutions typically contain electrolytes, trace elements, and vitamins. Electrolytes are essential for maintaining proper fluid balance and nerve function in the body. Trace elements are minerals that are required in small amounts for various physiological functions. Vitamins are organic compounds that are necessary for normal cell function, growth, and development. Therefore, adding electrolytes, trace elements, and vitamins to TPN solutions ensures that the patient receives the necessary nutrients to support their bodily functions.

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  • 6. 

    Which of the following is indicated to treat essential fatty acid deficiency?

    • A.

      50% dextrose

    • B.

      Branched-chain amino acids

    • C.

      Lipids

    • D.

      Selenium

    Correct Answer
    C. Lipids
    Explanation
    Lipids are indicated to treat essential fatty acid deficiency because they are a major source of essential fatty acids. Essential fatty acids are necessary for various physiological processes in the body, including the synthesis of hormones and cell membranes. Lipids, such as omega-3 and omega-6 fatty acids, are rich sources of these essential fatty acids. Therefore, supplementing with lipids can help correct the deficiency and ensure the proper functioning of the body.

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  • 7. 

    Which one of the following statements accurately reflects principles of peripheral parenteral nutrition?

    • A.

      Designed for acutely stressed patients.

    • B.

      Used for therapies of 6 to 12 weeks.

    • C.

      Crystalline amino acids used are within the 2-5% range.

    • D.

      Standard dextrose concentration is usually 20%.

    Correct Answer
    C. Crystalline amino acids used are within the 2-5% range.
    Explanation
    Peripheral parenteral nutrition (PPN) is a method of providing nutrition to patients who are unable to consume adequate nutrients orally or through enteral means. PPN is typically used for short-term therapies, usually lasting 6 to 12 weeks. The statement that crystalline amino acids used in PPN are within the 2-5% range is accurate. Crystalline amino acids are an essential component of PPN solutions and are typically formulated at concentrations within this range to meet the patient's nutritional needs. The standard dextrose concentration in PPN solutions is usually 20%, but this statement is not accurate in reflecting principles of PPN.

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  • 8. 

    The regimen of time for the delivery of cyclic TPN therapy is usually how many hours?

    • A.

      2-4

    • B.

      6-10

    • C.

      8-12

    • D.

      12-18

    Correct Answer
    D. 12-18
    Explanation
    The correct answer is 12-18 hours. This is the typical timeframe for the delivery of cyclic TPN therapy. Cyclic TPN therapy involves providing nutrients intravenously over a specific period of time, usually during the night while the patient is asleep. This allows the patient to have more freedom during the day and reduces the risk of complications associated with long-term TPN use. The 12-18 hour timeframe ensures that the patient receives adequate nutrition while still allowing for periods of fasting and normal eating during the day.

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  • 9. 

    Potential TPN-associated metabolic complications include which of the following?

    • A.

      Sepsis, glucose intolerance, and electrolyte imbalances

    • B.

      Cachexia, glucose intolerance, and essential fatty acid deficiency

    • C.

      Lipoid nephrosis, glucose intolerance, and electrolyte imbalances

    • D.

      Glucose intolerance, electrolyte imbalances, and essential fatty acid deficiency

    Correct Answer
    D. Glucose intolerance, electrolyte imbalances, and essential fatty acid deficiency
    Explanation
    The correct answer is glucose intolerance, electrolyte imbalances, and essential fatty acid deficiency. Total parenteral nutrition (TPN) is a method of providing nutrition through intravenous feeding. Glucose intolerance can occur as a result of excessive glucose infusion, leading to hyperglycemia. Electrolyte imbalances can occur due to the imbalance in electrolytes provided in the TPN solution or due to fluid shifts. Essential fatty acid deficiency can occur if the TPN solution does not contain an adequate amount of essential fatty acids, which are necessary for normal physiological functions. These potential complications highlight the importance of carefully monitoring and adjusting TPN therapy to prevent adverse metabolic effects.

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  • 10. 

    The reversal of a hyperglycemic, hyperosmolar, nonketotic coma secondary to TPN requires the administration of:

    • A.

      Anticoagulants

    • B.

      Histamine blockers

    • C.

      Insulin

    • D.

      Sodium lactate

    Correct Answer
    C. Insulin
    Explanation
    In the case of a hyperglycemic, hyperosmolar, nonketotic coma secondary to TPN (total parenteral nutrition), the administration of insulin is necessary to reverse the condition. Insulin helps to lower blood glucose levels and promote the uptake of glucose by cells, thus improving the hyperglycemia. It also helps to prevent the production of ketones and corrects the imbalance in electrolytes caused by the hyperosmolarity. Anticoagulants, histamine blockers, and sodium lactate are not directly involved in the treatment of this condition, making insulin the correct answer.

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  • 11. 

    Dry-scaling skin, thinning hair, thrombocytopenia, and liver function abnormalities are clinical manifestations of what condition?

    • A.

      Essential fatty acid deficiency

    • B.

      Hyperlipemia

    • C.

      Hyperosmolar syndrome

    • D.

      Hypoglycemia

    Correct Answer
    A. Essential fatty acid deficiency
    Explanation
    Dry-scaling skin, thinning hair, thrombocytopenia, and liver function abnormalities are clinical manifestations of essential fatty acid deficiency. Essential fatty acids are important for the health of the skin, hair, and liver. When there is a deficiency of these fatty acids, it can lead to dry-scaling skin, thinning hair, thrombocytopenia (low platelet count), and liver function abnormalities. Therefore, essential fatty acid deficiency is the most likely condition that can explain these clinical manifestations.

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  • 12. 

    Which of the following filter porosity ratings is appropriate for use with three-in-one nutrient solutions?

    • A.

      0.22u

    • B.

      1.2u

    • C.

      2.5u

    • D.

      5u

    Correct Answer
    B. 1.2u
    Explanation
    A filter with a porosity rating of 1.2u is appropriate for use with three-in-one nutrient solutions. This means that the filter has a pore size of 1.2 micrometers, which is small enough to effectively filter out any contaminants or particles that may be present in the nutrient solution. Using a filter with a smaller pore size ensures that the nutrient solution remains clean and free from any unwanted substances, allowing for optimal growth and health of plants or organisms that rely on the solution for nutrients.

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  • 13. 

    The administration set used for the infusion of TPN solutions should be changed according to what schedule?

    • A.

      With each container of fluid

    • B.

      Every 24 hours

    • C.

      Every 48 hours

    • D.

      Every 72 hours

    Correct Answer
    B. Every 24 hours
    Explanation
    The administration set used for the infusion of TPN solutions should be changed every 24 hours. This is necessary to prevent the growth of bacteria and ensure the safety and effectiveness of the TPN solution. Over time, the administration set can become contaminated, leading to potential infection in the patient. Therefore, changing the administration set regularly helps maintain the integrity of the TPN solution and reduces the risk of complications.

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  • 14. 

    Which of the following is a nursing consideration specific to the intravenous administration of lipids?

    • A.

      Monitoring lipemia clearance on a weekly basis

    • B.

      Using only central venous access for the infusion

    • C.

      Testing urine for glycosuria every 6 hours

    • D.

      Using non-PVC tubing

    Correct Answer
    D. Using non-PVC tubing
    Explanation
    Using non-PVC tubing is a nursing consideration specific to the intravenous administration of lipids because lipids can interact with PVC tubing, causing leaching of plasticizers into the solution. This can lead to the formation of particles and emboli, which can be harmful to the patient if infused. Therefore, using non-PVC tubing is important to ensure the integrity and safety of the lipid infusion.

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  • 15. 

    What is the appropriate area for preparing TPN solutions?

    • A.

      In the central supply department

    • B.

      Under a laminar flow hood in the pharmacy

    • C.

      In a clean medication room on the nursing division

    • D.

      At the patient's bedside

    Correct Answer
    B. Under a laminar flow hood in the pharmacy
    Explanation
    Under a laminar flow hood in the pharmacy is the appropriate area for preparing TPN solutions because laminar flow hoods provide a sterile environment by filtering the air and removing contaminants. This is crucial for the preparation of TPN solutions, which require strict aseptic techniques to prevent contamination. The pharmacy is also equipped with the necessary equipment and supplies to accurately measure and mix the components of TPN solutions. Additionally, preparing TPN solutions in a controlled environment like the pharmacy allows for proper monitoring and quality control measures to ensure the safety and efficacy of the solutions.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 23, 2011
    Quiz Created by
    GSWife
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