Question 1

Why do hospitalized patients need intravenous fluids?

Accepted Answer

Hospitalized patients require IV fluids to maintain fluid and electrolyte balance when medical conditions prevent oral intake. IV fluids prevent hypovolemia, dehydration, and electrolyte imbalances. Pre-surgical patients who must be NPO (nothing by mouth) receive IV fluids to maintain hydration during procedures, while post-surgical patients may need IV fluids to restore intravascular volume after blood loss.

Question 2

What are the two main types of IV administration devices?

Accepted Answer

IV fluids can be delivered using gravity flow infusion devices, which rely on gravitational force to push fluid into the bloodstream, or infusion pumps, which use positive pressure mechanisms. While infusion pumps are most common, gravity tubing may be necessary due to facility policy, equipment availability, or limitations such as power outages.

Question 3

When would a nurse use gravity tubing instead of an infusion pump?

Accepted Answer

Nurses use gravity tubing when infusion pumps are unavailable, facility policy requires it, or operational limitations like power outages occur. Although infusion pumps are the standard approach for administering maintenance IV fluids, gravity tubing remains an essential alternative method that requires proper calculation and adjustment of drip rates.

Question 4

What conditions require patients to be NPO before surgery?

Accepted Answer

Patients scheduled for surgery requiring anesthesia must be NPO (nil per os) to prevent aspiration of stomach contents during the procedure. NPO status maintains patient safety during anesthesia while IV fluids preserve hydration and fluid balance until oral intake can resume after the procedure.

Question 5

How does gravity flow differ from pump-driven IV administration?

Accepted Answer

Gravity flow infusion relies on gravitational force to deliver fluids passively into the patient's bloodstream, requiring manual drip rate adjustment. Pump-driven administration uses positive pressure to actively push fluids, offering more precise control. Gravity tubing requires nurses to calculate and set appropriate drip rates manually based on prescribed flow volumes.

Question 6

What is the primary goal of maintenance IV fluids in post-surgical patients?

Accepted Answer

Post-surgical patients receive maintenance IV fluids to increase intravascular volume following surgical blood loss and to restore fluid and electrolyte balance. IV fluid administration helps prevent complications from dehydration and hypovolemia during the recovery period when oral intake may be restricted.

Question 7

What skills must nurses master when initiating IV fluids with gravity tubing?

Accepted Answer

Nurses must calculate drip rates accurately and set infusion rates correctly when using gravity tubing. These calculations determine how many drops per minute the IV delivers, ensuring patients receive prescribed fluid volumes. Proper technique is essential since gravity tubing lacks the automated precision of infusion pumps and requires ongoing monitoring and adjustment.

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