A nurse is assessing a client who has fluid overload. Which of the following findings should the nurse expect? (Select all that apply)
Increased respiratory rate.
Increased heart rate
Increased blood pressure
Increased Hematocrit
Increased temperature
Correct Answer : A,B,C
Choice A: Increased Respiratory Rate
Fluid overload, also known as hypervolemia, can lead to an increased respiratory rate. This occurs because the excess fluid in the body can accumulate in the lungs, leading to pulmonary congestion and edema. As a result, the body attempts to compensate by increasing the respiratory rate to improve oxygenation and remove excess carbon dioxide. Normal respiratory rate for adults is typically between 12-20 breaths per minute. An increased respiratory rate above this range can indicate fluid overload.
Choice B: Increased Heart Rate
An increased heart rate, or tachycardia, is another common finding in clients with fluid overload. The heart has to work harder to pump the excess fluid throughout the body, leading to an increased heart rate. This is a compensatory mechanism to maintain adequate cardiac output and tissue perfusion. Normal resting heart rate for adults is between 60-100 beats per minute. A heart rate above this range can be indicative of fluid overload.
Choice C: Increased Blood Pressure
Fluid overload can also result in increased blood pressure, or hypertension. The excess fluid in the bloodstream increases the volume of blood that the heart has to pump, leading to higher pressure within the arteries. This can strain the cardiovascular system and lead to complications if not managed properly. Normal blood pressure is typically around 120/80 mmHg. Blood pressure readings consistently above this range can suggest fluid overload.
Choice D: Increased Hematocrit
Increased hematocrit is not typically associated with fluid overload. Hematocrit is the proportion of red blood cells in the blood. In cases of fluid overload, the hematocrit level is usually decreased due to the dilutional effect of the excess fluid. Therefore, this choice is incorrect.
Choice E: Increased Temperature
Increased temperature is not a common finding in fluid overload. Fever or elevated body temperature is more commonly associated with infections or inflammatory conditions. Fluid overload does not typically cause an increase in body temperature. Therefore, this choice is incorrect.
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Correct Answer is B
Explanation
Choice A: Tachycardia
Tachycardia, defined as a heart rate exceeding 100 beats per minute, can affect the accuracy of pulse oximetry readings. When the heart beats too quickly, it may not fill with enough blood between beats, leading to reduced perfusion and oxygen delivery to tissues. However, while tachycardia can influence the readings, it is not the most significant factor compared to hypotension.
Choice B: Hypotension
Hypotension, or low blood pressure, significantly impacts pulse oximetry accuracy. When blood pressure is low, there is reduced perfusion to peripheral tissues, including the extremities where pulse oximeters are typically placed. This reduced perfusion can lead to inaccurate readings, as the device may not detect sufficient blood flow to measure oxygen saturation accurately. Hypotension is a critical factor that can alter pulse oximetry values, making it the most relevant choice.
Choice C: Tachypnea
Tachypnea, or rapid breathing, can affect oxygen levels in the blood but does not directly interfere with the pulse oximeter’s ability to measure oxygen saturation. While it indicates respiratory distress and can lead to hypoxemia, the pulse oximeter can still provide accurate readings unless accompanied by other factors like low perfusion.
Choice D: Fever
Fever can cause peripheral vasodilation, which might theoretically affect pulse oximetry readings by altering blood flow to the extremities. However, this effect is generally minimal compared to the impact of hypotension. Fever alone is unlikely to cause significant inaccuracies in pulse oximetry measurements.
Correct Answer is D
Explanation
Choice A Reason:
A pulse of 86 beats per minute is within the normal range for adults (60-100 beats per minute) and does not typically indicate a postoperative complication. While it is important to monitor vital signs, this pulse rate alone is not concerning unless accompanied by other abnormal findings.
Choice B Reason:
Hypoactive bowel sounds in all four quadrants can occur after surgery due to the effects of anesthesia and the surgical procedure itself. While it is important to monitor bowel sounds, hypoactivity is not immediately concerning unless it persists or is accompanied by other symptoms such as abdominal pain or distention. Therefore, this finding alone does not indicate an evolving complication.
Choice C Reason:
A blood pressure of 110/70 mm Hg is within the normal range for adults and does not typically indicate a postoperative complication. Blood pressure should be monitored regularly, but this reading alone is not concerning unless there are significant changes or other abnormal findings.
Choice D Reason:
Increasing restlessness is a concerning sign in the immediate postoperative period. It can indicate several potential complications, including pain, hypoxia, or the onset of delirium. Restlessness may also be an early sign of shock or other serious conditions that require prompt intervention. Therefore, this symptom warrants further assessment and immediate attention to determine the underlying cause and provide appropriate treatment.