C. Notify the physician or surgeon.

Choice A reason:

Administer oxygen via nasal cannula. This is not the priority action because the patient's oxygen saturation is 92%, which is within the normal range of 90% to 100%. Oxygen therapy may be helpful, but it does not address the underlying cause of the patient's hypotension, tachycardia, and oliguria.

Choice B reason:

Increase the rate of intravenous fluids. This is not the priority action because the patient may have fluid overload or bleeding as a result of the major abdominal surgery. Increasing the rate of intravenous fluids without knowing the patient's fluid status and blood loss may worsen the patient's condition and lead to complications such as pulmonary edema, heart failure, or hemorrhage.

Choice C reason:

Notify the physician or surgeon. This is the priority action because the patient's blood pressure is 90/60 mmHg, pulse is 120 beats/min, respiratory rate is 24 breaths/min, and urine output is 20 mL/h. These are signs of hypovolemic shock, which is a life-threatening condition that occurs when there is inadequate blood volume to maintain tissue perfusion. Hypovolemic shock can be caused by hemorrhage, dehydration, burns, or severe vomiting and diarrhea. The patient needs immediate medical attention and interventions such as blood transfusion, fluid resuscitation, vasopressors, and surgery to stop the bleeding source.

Choice D reason:

Administer pain medication. This is not the priority action because the patient's pain level is not mentioned in the question. Pain medication may be indicated for postoperative pain management, but it does not address the underlying cause of the patient's hypotension, tachycardia, and oliguria. Pain medication may also lower the blood pressure further and mask the signs of shock.

Choice A reason:

Keeping the dressing clean and dry prevents contamination and infection of the wound. It also helps the wound heal faster by protecting it from further injury. This is a standard instruction for wound care after a minor surgical procedure.

Choice B reason:

Changing the dressing every day or as needed helps keep the wound clean and allows the doctor or nurse to monitor the healing process. It also prevents the dressing from sticking to the wound or becoming too wet or soiled. This is another common instruction for wound care after a minor surgical procedure.

Choice C reason:

Washing the wound with soap and water is not recommended for wound care after a minor surgical procedure. Soap can irritate the wound and delay healing. Water can wash away the protective scab and cause bleeding. The wound should be rinsed with sterile water or saline solution instead.

Choice D reason:

Applying antibiotic ointment to the wound is not advised for wound care after a minor surgical procedure unless prescribed by the doctor or surgeon. Antibiotic ointment can cause allergic reactions, increase resistance to bacteria, or interfere with the healing process. The wound should be covered with a sterile dressing and left alone.

Choice E reason:

Reporting any signs of infection to the physician or surgeon is an important instruction for wound care after a minor surgical procedure. Signs of infection include redness, swelling, warmth, pain, pus, fever, or foul odor. Infection can delay healing, cause complications, or spread to other parts of the body.

Choice A reason:

This is not the best response because it does not address the patient's pain experience or offer any empathy. It also implies that medication is the only option for pain relief, which may not be true.

Choice B reason:

This is the best response because it acknowledges the patient's pain and asks them to elaborate on how it affects their daily activities. This can help the nurse assess the impact of pain on the patient's quality of life and plan appropriate interventions.

Choice C reason:

This is not the best response because it focuses on the duration and triggers of pain, which are more relevant for chronic pain than acute pain. It also does not show empathy or validate the patient's pain rating.

Choice D reason:

This is not the best response because it only expresses sympathy but does not ask the patient any questions or offer any solutions. It may also sound patronizing or dismissive to some patients.

Choice A reason:

This is incorrect because wound dehiscence is not normal and expected at this stage of healing. Wound dehiscence is a surgical complication where an incision reopens either internally or externally. It can interfere with wound healing and pose a threat to the individual's overall health. Wound dehiscence can be partial or complete, depending on how many layers of tissue are separated. In rare cases, wound dehiscence can lead to evisceration, which is when internal organs push out through the wound.

Choice B reason:

This is correct because wound dehiscence could be a sign of dehiscence, which is a medical emergency that requires immediate attention. The nurse should call the doctor right away and monitor the patient for signs of infection, bleeding, or evisceration. The nurse should also cover the wound with a sterile dressing moistened with saline to prevent further contamination and keep the patient calm and comfortable.

Choice C reason:

This is incorrect because coughing and deep breathing can increase the abdominal pressure and worsen the wound separation. The nurse should avoid any activities that can strain the stitches or staples used to hold the wound closed while it heals. The nurse should also instruct the patient to avoid vomiting, heavy lifting, or any sudden movements that can cause further damage to the wound.

Choice D reason:

This is incorrect because applying pressure on the wound can cause more bleeding or damage to the tissues. The nurse should not touch the wound or try to close it by themselves. The nurse should only cover the wound with a sterile dressing moistened with saline and wait for the doctor's instructions. Applying pressure on the wound can also increase the risk of infection or evisceration.

D. Infection.

Choice A reason:

Atelectasis is the collapse of alveoli in the lungs, which can impair gas exchange and cause hypoxia. It can occur after surgery due to anesthesia, pain, or immobility. However, atelectasis does not usually cause fever and chills, unless it is complicated by pneumonia.

Choice B reason:

Dehydration is the loss of fluid and electrolytes from the body, which can affect blood pressure, heart rate, and kidney function. It can occur after surgery due to blood loss, vomiting, or inadequate intake. However, dehydration does not usually cause fever and chills, unless it is associated with infection or heat stroke.

Choice C reason:

Inflammation is the body's response to tissue injury or infection, which involves increased blood flow, swelling, pain, and heat. It can occur after surgery as part of the normal healing process. However, inflammation does not usually cause fever and chills, unless it is severe or systemic.

Choice D reason:

Infection is the invasion and multiplication of microorganisms in the body, which can trigger an immune response and cause inflammation, fever, and chills. It can occur after surgery due to contamination of the surgical site, catheters, or intravenous lines. Infection is the most likely cause of fever and chills in a postoperative patient.