A nurse is caring for a client who has burns to approximately 50% of their body. Which of the following physiological changes related to the burns should the nurse anticipate? (Select all that apply.)
Decreased plasma volume
Diuresis
Hypermagnesemia
Capillary leak
Loss of protein
Correct Answer : A,D,E
A. Decreased plasma volume: Burn injuries cause a significant inflammatory response, leading to fluid shifts from the intravascular space to the interstitial space. This results in hypovolemia and decreased plasma volume, especially during the acute phase of burns.
B. Diuresis: Diuresis typically occurs after fluid resuscitation and stabilization of the client (in the later phase of burn recovery). In the initial phase, oliguria is more common due to hypovolemia and reduced renal perfusion.
C. Hypermagnesemia: Hypermagnesemia is not typically associated with burn injuries. Instead, clients with burns often experience hypomagnesemia due to fluid shifts, protein loss, and increased renal losses.
D. Capillary leak: Burn injuries lead to a systemic inflammatory response, causing capillary leak syndrome. This increases vascular permeability, allowing fluid, electrolytes, and proteins to leak into the interstitial spaces, contributing to edema and hypovolemia.
E. Loss of protein: Proteins are lost through damaged capillaries and open burn wounds, contributing to decreased oncotic pressure, edema, and a need for aggressive nutritional support to promote healing and recovery.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Body mass index (BMI) of 19:
A BMI of 19 falls within the normal weight range. While obesity (high BMI) is a known risk factor for surgical complications, including SSIs, having a lower BMI (underweight) like 19 may not directly increase the risk of SSIs. However, extreme malnutrition or low BMI due to underlying health conditions could potentially impact wound healing and immune function, indirectly contributing to infection risk.
B. History of deep vein thrombosis (DVT):
A history of deep vein thrombosis is a risk factor for surgical complications, including SSIs. Patients with a history of DVT may have impaired circulation or underlying vascular issues, which can affect tissue perfusion, wound healing, and increase the risk of infections.
C. Aged 55 years old:
Age is a risk factor for surgical complications, including SSIs. Older adults, typically defined as those aged 65 and above, may have reduced immune function, slower wound healing, and underlying health conditions that contribute to infection risk. While 55 years old is not considered advanced age in terms of surgical risk, older age in general is associated with a higher risk of complications.
D. Type 2 diabetes mellitus:
Type 2 diabetes mellitus is a significant risk factor for SSIs. Diabetes can impair immune function, delay wound healing, and increase susceptibility to infections. Poorly controlled blood sugar levels in diabetic patients can further exacerbate the risk of SSIs post-surgery.
Correct Answer is B
Explanation
A. Smoking causes you to cough frequently, and the wound might get infected by sputum.
While smoking can indeed contribute to respiratory issues like coughing, linking this directly to wound infection by sputum is not the most accurate explanation of how smoking affects wound healing. The primary concern with smoking and wound healing lies in its effects on circulation and tissue oxygenation rather than the risk of infection due to coughing.
B. Nicotine causes vasoconstriction, so your wound might not get enough blood flow to heal.
This is the best response among the options provided. Nicotine, a major component of cigarette smoke, is known to constrict blood vessels (vasoconstriction). This constriction reduces blood flow to the wound site, leading to decreased delivery of oxygen and nutrients necessary for proper wound healing. It addresses the direct physiological impact of smoking on wound healing and provides a clear explanation for the client.
C. Nicotine causes tar to build up in the wound, and it will impair healing.
While nicotine and other components of tobacco smoke can have detrimental effects on healing, particularly through vasoconstriction, the explanation about tar building up in the wound is not entirely accurate. Tar is more associated with lung damage from smoking rather than direct buildup in external wounds. Therefore, this response is less specific and may confuse the client about the actual mechanism of how smoking affects wound healing.
D. Smoking is bad, and you should stop right away.
While this response emphasizes the importance of smoking cessation, it lacks specificity in explaining how smoking impacts wound healing. Providing specific information about vasoconstriction due to nicotine, as mentioned in option B, would be more helpful in helping the client understand the direct effects of smoking on their chronic wound and why cessation is crucial.
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