A 45-year-old patient presents to the trauma unit after a gunshot wound (GSW) to the abdomen. The patient has a temperature of 92 degrees Fahrenheit, is restless and confused, and has large amount of blood noted from the nasogastric (NG) tube as well as from the indwelling urinary catheter. Which additional assessment finding likely causes death within the first 24 hours following this injury?
Heart rate of 130 beats per minute
PH of 7.21 (normal 7.35-7.45)
Serum potassium 5.7 mEq/L (normal 3,5-5.3)
Platelet count 200,000 (normal 150,000-450,000)
The Correct Answer is B
A) Heart rate of 130 beats per minute
A heart rate of 130 beats per minute is tachycardia, which is often a compensatory response to injury, particularly in cases of trauma, blood loss, or shock. It is common in the initial phase after trauma as the body attempts to compensate for decreased blood volume or oxygen delivery. However, tachycardia alone is not typically fatal in the immediate post-injury period and can often be managed.
B) pH of 7.21 (normal 7.35–7.45)
A pH of 7.21 indicates acidosis, which is life-threatening and typically arises from shock, blood loss, or severe trauma. Acidosis occurs when the body is unable to compensate for lactic acid or other metabolic byproducts that accumulate due to insufficient oxygen delivery to tissues. In the case of a gunshot wound to the abdomen, there is a high risk of internal bleeding, hypoperfusion, and hypoxia, all of which can lead to metabolic acidosis. Severe acidosis can cause organ failure, particularly affecting the heart, kidneys, and brain.
C) Serum potassium 5.7 mEq/L (normal 3.5–5.3)
A serum potassium of 5.7 mEq/L is elevated, but it is moderately high and not typically life-threatening unless it reaches much higher levels (e.g., >6.0 mEq/L), which can cause cardiac arrhythmias. Elevated potassium can occur due to cellular injury (e.g., muscle trauma or rhabdomyolysis), but it would need to be corrected to prevent complications like arrhythmias.
D) Platelet count 200,000 (normal 150,000–450,000)
A platelet count of 200,000 is within the normal range (150,000–450,000) and does not indicate a problem with coagulation. The blood loss and the NG tube hemorrhage mentioned in the scenario suggest that the patient may be at risk for bleeding, but a platelet count in the normal range suggests that the body’s ability to form clots is likely intact.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Chemical burns to the posterior neck, chest, and back:
Chemical burns primarily affect the skin and underlying tissues where the chemicals have come into contact. Although chemical burns can cause significant damage, particularly to the respiratory system if inhaled, chemical burns to the posterior neck, chest, and back would not typically require endotracheal intubation or tracheostomy unless there is evidence of inhalation injury or airway compromise.
B) Radiation burns to shoulder and bridge of nose:
Radiation burns, such as those from sunburn or therapeutic radiation, generally do not cause immediate airway compromise or respiratory distress unless the radiation exposure has affected the lungs or upper respiratory tract.
C) Electrical burns to the hands causing dysrhythmias:
Electrical burns can cause significant tissue damage, especially if there is a deep tissue injury and potential for electrical burns to the internal organs. They can lead to dysrhythmias, but these burns are more related to cardiac complications rather than direct airway injury. Endotracheal intubation may be required if there are signs of airway compromise or respiratory failure, but the primary concern with electrical burns would be cardiac monitoring and fluid resuscitation.
D) Thermal burns to the head, neck, face, and airway:
The upper airway (including the mouth, throat, and vocal cords) is particularly vulnerable to thermal injury from inhaling hot gases, smoke, or steam. This can lead to edema and airway obstruction, which can rapidly progress to respiratory failure. Endotracheal intubation or even a tracheostomy may be required to secure the airway and prevent suffocation. Inhalation injury is a significant concern in thermal burns involving the head, neck, and face.
Correct Answer is C
Explanation
A) Hypertension treated with medications
Hypertension (high blood pressure) itself is not a direct cause of infectious endocarditis. While untreated or poorly managed hypertension can contribute to cardiovascular complications, it is not typically a risk factor for developing infectious endocarditis. Infectious endocarditis is more commonly associated with conditions that directly involve the heart valves or blood stream, such as intravenous drug use, prior heart valve disease, or certain invasive procedures.
B) Prostate surgery six months prior
While certain surgeries, such as dental or urinary tract procedures, can increase the risk of infectious endocarditis due to transient bacteremia, prostate surgery by itself is not a major risk factor for this condition. Unless there was a complication during the surgery that resulted in bacteremia (e.g., infection), B is not the most likely contributor to the development of infectious endocarditis.
C) Use of intravenous substances
The use of intravenous (IV) substances, especially illicit drugs, is a major risk factor for the development of infectious endocarditis. Intravenous drug use, particularly when non-sterile needles or contaminated substances are used, can introduce bacteria directly into the bloodstream, leading to bacteremia.
D) Stroke diagnosed one year ago
While a history of stroke may indicate underlying cardiovascular disease or embolic events, it is not directly related to the development of infectious endocarditis. Stroke can occur as a complication of infectious endocarditis, particularly if emboli from infected valves travel to the brain. However, a prior stroke itself does not directly contribute to the development of endocarditis.
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