An arterial catheter is inserted in the right radial artery to monitor a patient's blood pressure. Which information obtained by the nurse indicates that a complication of arterial pressure monitoring may be occurring?

Allen's test is positive.

The mean arterial pressure (MAP) is 90 mm Hg.

The dicrotic notch is visible in the waveform.

The right hand is numb.

Answer and Explanation

The Correct Answer is D

Arterial pressure monitoring involves the insertion of an arterial catheter, typically in the radial artery, to directly measure blood pressure. Complications can arise from this invasive procedure, and one potential complication is inadequate blood flow to the hand, leading to numbness or ischemia.
A. The Allen's test is positive in (option A) is incorrect because The Allen's test is performed before arterial catheter insertion to assess the collateral circulation of the hand. A positive Allen test indicates adequate collateral circulation, which is desirable before performing the procedure. However, it does not directly indicate a complication during or after arterial pressure monitoring.
B. The mean arterial pressure (MAP) is 90 mm Hg in (option B) is incorrect because The mean arterial pressure (MAP) represents the average pressure in the arterial system during one cardiac cycle. While changes in MAP can be significant for patient management, it does not specifically indicate a complication of arterial pressure monitoring.
C. The dicrotic notch visible in the waveform in (option C) is incorrect because The dicrotic notch represents the closure of the aortic valve and is a normal finding in arterial waveforms. Its presence does not indicate a complication.

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Correct Answer is A,B,D,C

Explanation

A. Decreased blood volume: Burn injuries can lead to fluid loss, primarily through damaged skin. This fluid loss causes a decrease in blood volume, leading to hypovolemia. Hypovolemia contributes to decreased cardiac output and tissue perfusion.
B. Increased vascular permeability: Burn injuries cause an inflammatory response, leading to increased vascular permeability. This increased permeability allows fluid, electrolytes, and proteins to leak from the intravascular space into the interstitial space.
C. Development of edema: The increased vascular permeability and fluid leakage lead to the development of edema. Edema occurs as fluid accumulates in the interstitial spaces, further contributing to tissue swelling and compromised perfusion.
D. Increased peripheral resistance: In response to decreased blood volume and tissue hypoperfusion, the body activates compensatory mechanisms to maintain blood pressure and tissue perfusion. One of these mechanisms is increased peripheral resistance, which occurs as blood vessels constrict to maintain blood pressure. Increased peripheral resistance helps redirect blood flow to vital organs but also contributes to increased workload on the heart.
Therefore, the correct sequential order of events involved in burn shock following a patient's exposure to burns is:
A. Decreased blood volume B. Increased vascular permeability D. Development of edema C. Increased peripheral resistance

A. Oxygen saturation 92% B. Skin cool and clammy C. Blood pressure (BP) 92/56 mm Hg D. Heart rate 118 beats/minute

Correct Answer is B

Explanation

A. Oxygen saturation of 92% in (option A) is incorrect because While an oxygen saturation of 92% is suboptimal and may require intervention, it may not have the same immediate implications as low blood pressure. The healthcare provider should be informed, but addressing the blood pressure takes priority.
B. Skin cool and clammy in (option B) is correct because Cool and clammy skin is often associated with inadequate peripheral perfusion, which is a characteristic of septic shock.

C. Septic shock is characterized by systemic inflammation, vasodilation, and hypotension. Inadequate blood pressure is a significant concern in septic shock as it indicates poor tissue perfusion and compromised organ function. However, the mean arterial pressure is till acceptable.
D. Heart rate of 118 beats/minute in (option D) is incorrect because: Tachycardia is a common finding in septic shock and reflects the body's compensatory response to maintain cardiac output. While it is a significant finding, low blood pressure takes precedence in terms of urgency.

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An arterial catheter is inserted in the right radial artery to monitor a patient's blood pressure. Which information obtained by the nurse indicates that a complication of arterial pressure monitoring may be occurring?

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Naxlex Comprehensive Predictor Exams

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Explanation

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