A client requires an IV antibiotic piggyback. The nurse understands that the primary IV solution with gravity flow tubing needs to be hung:
higher than the piggyback medication.
lower than the piggyback medication.
at the same height as the the piggyback bag.
lower than the IV insertion site.
The Correct Answer is A
A. Positioning the primary IV solution bag higher than the piggyback medication bag creates a pressure gradient, allowing the primary solution to infuse first. Once the primary solution has finished, the secondary piggyback medication automatically starts infusing. This setup ensures that the primary solution is fully infused before the piggyback medication begins.
B. Placing the primary IV solution bag lower than the piggyback medication bag is not the standard practice. This setup would create a pressure gradient that could result in the piggyback medication infusing before the primary solution, which is not desirable. It could lead to incomplete infusion of the primary solution and compromise the effectiveness of the treatment.
C. Positioning the primary IV solution bag at the same height as the piggyback bag does not create a pressure gradient for sequential infusion. As a result, both solutions would flow at the same rate, and it would be challenging to control the order of infusion. This setup is not appropriate for administering IV antibiotics via piggyback because it does not ensure the proper sequence of infusion.
D. The height of the IV solution relative to the insertion site is essential for proper infusion and preventing complications such as infiltration or phlebitis. Ideally, the IV solution should be hung at a height that allows for a gentle flow of fluid into the vein without causing excessive pressure or backflow. Placing the IV solution lower than the insertion site helps facilitate gravity-assisted flow into the vein.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
C. Full compensation typically occurs within 2 to 3 days (approximately 72 hours) after the onset of an acid-base disturbance. During full compensation, the primary acid-base disorder (e.g., respiratory acidosis or alkalosis, metabolic acidosis or alkalosis) is still present, but the compensatory mechanisms have effectively brought the pH, pCO2, and bicarbonate (pHCO3) levels back towards normal range.
A. Full compensation occurs when both the primary disorder (respiratory or metabolic) and the compensatory mechanism (renal or respiratory) are functioning to return the pH towards normal. In this option, while the pO2 is within the normal range, the pH, pCO2, and bicarbonate (pHCO3) are all abnormal, indicating an ongoing imbalance.
B. Full compensation occurs when all components of the ABG are within or approaching normal range, indicating that the body's compensatory mechanisms have effectively counteracted the primary acid- base disturbance. In this option, the bicarbonate (pHCO3) is mentioned as starting to change, indicating incomplete compensation.
D. While the pH is within the normal range, both the pCO2 and pO2 are abnormal, indicating a primary respiratory disturbance. In the case of full compensation, the pH, pCO2, and bicarbonate (pHCO3) levels would all be within or approaching normal range, indicating that the compensatory mechanisms have effectively counteracted the primary acid-base disturbance.
Correct Answer is B
Explanation
B. This statement aligns with the concept of allostatic load, which refers to the cumulative physiological toll that chronic stress places on the body over time. Initially, the body's stress response system (the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system) is designed to help individuals cope with acute stressors. However, when stress becomes chronic, these physiological responses can become dysregulated and maladaptive, leading to negative health outcomes such as cardiovascular disease, immune dysfunction, and mental health disorders.
A. Chronic stress has been associated with various changes in gene expression and epigenetic modifications. However, these changes typically occur over longer periods and are not the primary mechanism by which chronic stress leads to illness in most cases.
C. Chronic stress can lead to dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic nervous system, which are responsible for producing and regulating corticosteroids (such as cortisol) and catecholamines (such as adrenaline and noradrenaline). While acute stress typically results in increased production of these stress hormones, chronic stress can lead to desensitization and dysregulation of these systems, resulting in alterations in hormone levels and potential deficits in the availability of these stress mediators. However, deficits in corticosteroids and catecholamines are not the sole mechanism by which chronic stress leads to illness.
D. While chronic stress can certainly contribute to psychological fatigue and depletion of energy reserves, this is not the primary mechanism by which chronic stress leads to illness. The physiological responses to chronic stress, such as dysregulation of stress hormones, inflammation, and oxidative stress, are more directly linked to the development of various illnesses.
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