A nurse is analyzing the arterial blood gas (ABG) results of a patient.


The patient’s ABGs are: pH:7.6, PaCO2:40 mm Hg, HCO3:32 mEq/L. Which of the following acid-base conditions should the nurse identify the patient is experiencing?

Choice A rationale:

Tenderness to touch is a common finding in wounds healing by secondary intention. It's often due to inflammation, which is a normal part of the healing process. The inflammation brings in cells and substances that promote healing. However, increased tenderness, especially when accompanied by other signs of infection, should be reported.

Choice B rationale:

A halo of erythema on the surrounding skin is a sign of infection. This is a serious complication that can delay healing and lead to further complications. The erythema indicates that the infection is spreading beyond the wound edges and needs prompt attention.

Choice C rationale:

Drainage of serosanguineous fluid is also common in wounds healing by secondary intention. This fluid is a mixture of serum (clear yellowish fluid) and blood. It's a sign that the wound is cleaning itself and new tissue is forming. While excessive drainage or a change in color or odor could signal a problem, drainage itself is not necessarily a cause for concern.

Choice D rationale:

Pink, shiny tissue with a granular appearance is a sign of healthy granulation tissue. This is a type of tissue that forms during the healing process. It's rich in blood vessels and collagen, which are essential for wound healing. The presence of granulation tissue indicates that the wound is healing well.

Choice B rationale:

Stridor is a high-pitched, wheezing sound that is heard during inspiration. It is caused by a narrowing or obstruction of the upper airway. This can be a serious complication after extubation, as it can indicate that the patient is not able to breathe adequately. Stridor can be caused by a number of factors, including:

Laryngeal edema: This is swelling of the larynx, which can be caused by irritation from the endotracheal tube.

Laryngospasm: This is a sudden constriction of the muscles of the larynx, which can be caused by irritation or by a foreign body in the airway.

Vocal cord paralysis: This is a loss of movement of the vocal cords, which can be caused by damage to the nerves that control them.

Blood or secretions in the airway: These can obstruct the airway and cause stridor.

It is important for the nurse to report stridor to the provider immediately so that the cause can be identified and treated. Treatment may include:

Oxygen therapy: This can help to improve the patient's breathing.

Medications: These may be used to reduce inflammation or to relax the muscles of the airway. Reintubation: This may be necessary if the patient is not able to breathe adequately on their own.