A patient has difficulty in breathing. The nurse provides oxygen therapy to the patient, after which the patient feels better. Which principle is involved in this situation?

Choice A rationale:

Placing the client in a modified Trendelenburg position is not the first intervention for a client with a deep laceration and heavy bleeding. This position involves tilting the patient with the head lower than the feet and is typically used to improve venous return in certain situations, such as hypovolemic shock. However, for a bleeding wound, the priority is to control the bleeding itself.

Choice B rationale:

Applying a tourniquet just above the wound is a drastic measure and is generally not the first intervention for controlling bleeding. Tourniquets are used when direct pressure and other methods are unsuccessful, as they can lead to complications such as tissue damage and ischemia if not used correctly.

Choice C rationale:

Starting two large-bore IV catheters is important for fluid resuscitation in cases of significant bleeding. However, it is not the first intervention. Directly controlling the bleeding takes precedence to prevent further blood loss.

Choice D rationale:

Applying pressure directly to the wound is the correct answer. This is the initial and immediate action to take when dealing with a heavily bleeding wound. Applying pressure helps to stem the bleeding by promoting clot formation and reducing blood loss. It is a vital step in managing the client's condition and preventing further deterioration.

Choice A rationale:

Applying petroleum jelly to the nares is not necessary in this situation. Oxygen therapy through a nasal cannula aims to deliver oxygen to the client's respiratory system. Applying petroleum jelly might interfere with the oxygen delivery and is not a standard practice.

Choice B rationale:

Removing the nasal cannula while the client eats reduces the oxygen supply during a time when the body's oxygen demand might increase due to the digestive process. It's important to maintain consistent oxygen therapy, even during meals.

Choice C rationale:

Attaching a humidifier bottle to the base of the flow meter is not necessary for oxygen therapy at 5 L/min via nasal cannula. Humidification is usually needed at higher oxygen flow rates to prevent drying of the mucous membranes.

Choice D rationale:

Securing the oxygen tubing to the bed sheet near the client's head is the correct action. This ensures that the tubing is not pulled or tugged during movement, maintaining a steady flow of oxygen. Placing it near the client's head prevents kinking or tangling of the tubing and allows the client to move without disrupting the therapy.