A student asks the nurse why a peripherally inserted central catheter is needed for a patient receiving Total Parenteral Nutrition (TPN) with 25% dextrose. Which response by the nurse is accurate?
The required blood glucose monitoring is based on samples obtained from a central line.
There is a decreased risk for infection when 25% dextrose is infused through a central line.
The hypertonic solution will be more rapidly diluted when given through a central line.
The prescribed infusion can be given more rapidly when the patient has a central line.
The Correct Answer is C
Choice A reason: While blood glucose monitoring is essential for patients receiving TPN, it is not specifically necessary to obtain samples from a central line. Blood glucose levels can be monitored through peripheral blood samples.
Choice B reason: There is actually an increased risk of infection with central lines compared to peripheral lines due to the invasive nature of central line placement and its location. Proper aseptic technique is critical to minimize this risk.
Choice C reason: The hypertonic solution will be more rapidly diluted when given through a central line. This is a critical point because the central veins have a higher blood flow and larger volume, which helps to quickly dilute the hypertonic TPN solution. This reduces the risk of phlebitis and damage to the smaller peripheral veins, making central lines more suitable for infusing highly concentrated solutions like 25% dextrose.
Choice D reason: While a central line can allow for the rapid administration of infusions, this is not the primary reason for its use with TPN. The key factor is the dilution of the hypertonic solution, as central lines handle high osmolarity solutions better than peripheral veins.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Preventing DVT and VTE is a critical component of patient care in hospitals. These conditions can lead to serious complications such as pulmonary embolism, which can be life-threatening. Therefore, hospitals implement various measures, including the use of anticoagulants, compression devices, and early mobilization, to reduce the risk of DVT and VTE in hospitalized patients.
Choice B reason: The statement that DVT and VTE prevention is not a core measure for hospitalized patients is incorrect. Ensuring that patients are protected against these potential complications is a fundamental aspect of inpatient care to promote patient safety and improve outcomes.
Correct Answer is C
Explanation
Choice A reason: Fluid volume overload is not typically associated with diabetes insipidus. Instead, patients with diabetes insipidus often experience fluid volume deficit due to excessive urine output.
Choice B reason: Hyperglycemia is not a characteristic problem of diabetes insipidus. This condition involves an imbalance in water regulation due to insufficient production or response to antidiuretic hormone (ADH), rather than issues related to blood glucose levels.
Choice C reason: Nocturia, or frequent urination at night, is a common problem in diabetes insipidus. Patients with this condition produce large amounts of dilute urine, which can lead to frequent nighttime urination.
Choice D reason: Generalized edema is not a typical problem in diabetes insipidus. Edema is more commonly associated with conditions involving fluid retention, such as heart failure or kidney disease, rather than the excessive fluid loss seen in diabetes insipidus.
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