The emergency department nurse evaluates that fluid resuscitation for a 70 kg patient in shock is effective by finding which one of the following?

The patient's mean arterial pressure (MAP) is 50 mm Hg.

The patient's GCS score is 9.

The patient's urine output has been 35 ml over the last hour.

The patient's hemoglobin is within normal limits.

Answer and Explanation

The Correct Answer is C

Urine output is an essential indicator of renal perfusion and overall fluid status. In a patient in shock, maintaining an adequate urine output is a crucial goal of fluid resuscitation. A urine output of 0.5 to 1 mL/kg/hour is generally considered adequate in adults. The given value of 35 ml over the last hour suggests that the patient is producing urine, which indicates that fluid resuscitation is effective in restoring perfusion to the kidneys.
A. The patient's mean arterial pressure (MAP) is 50 mm Hg in (option A) is incorrect because While mean arterial pressure is an important hemodynamic parameter, a single value alone may not provide a comprehensive assessment of the patient's response to fluid resuscitation.
B. The patient's GCS score is 9 in (option B) is incorrect because The Glasgow Coma Scale (GCS) assesses the level of consciousness and neurological function but does not directly reflect fluid resuscitation effectiveness.
D. The patient's hemoglobin is within normal limits: (option D) is incorrect because Haemoglobin levels are important for assessing oxygen-carrying capacity but do not directly indicate the effectiveness of fluid resuscitation.
Therefore, the nurse can evaluate that fluid resuscitation for a 70 kg patient in shock is effective by observing a urine output of 35 ml over the last hour.

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Correct Answer is ["A","B","C","D"]

Explanation

These conditions can lead to fluid loss, either through increased gastrointestinal output (diarrhea, vomiting, lower GI bleeding) or accumulation of air in the pleural space (tension pneumothorax), resulting in a decrease in blood volume and subsequent hypovolemic shock.
E. Diabetes insipidus in (option E) is incorrect because it is not directly associated with hypovolemic shock. Diabetes insipidus is a condition characterized by excessive thirst and the production of large volumes of dilute urine due to insufficient production or response to antidiuretic hormone (ADH). While diabetes insipidus can lead to dehydration and potential hypovolemia, it is not a direct cause of hypovolemic shock.
F. Valvular stenosis in (option F) is incorrect because it is a condition characterized by the narrowing or obstruction of one or more heart valves. While it can cause problems with cardiac output and circulation, it is not specifically related to hypovolemic shock, which is caused by a decrease in blood volume.
Therefore, the conditions that can cause hypovolemic shock include diarrhea, vomiting, lower GI bleeding, and tension pneumothorax.

A. Pulmonary artery wedge pressure (PAWP) B. Systemic vascular resistance (SVR) C. Pulmonary vascular resistance (PVR) D. Central venous pressure (CVP)

Correct Answer is B

Explanation

Systemic vascular resistance represents the resistance to blood flow in the systemic circulation. It is an important indicator of afterload, which is the force against which the left ventricle must pump to eject blood into the systemic circulation. By monitoring the changes in SVR, the nurse can assess the impact of medications aimed at reducing left ventricular afterload.
A. Pulmonary artery wedge pressure (PAWP) in (option A) is incorrect because: PAWP is a measure of left ventricular preload and reflects the pressure within the left atrium and left ventricle at end-diastole. It is not specifically related to afterload reduction.
C. Pulmonary vascular resistance (PVR) in (option C) is incorrect because: PVR represents the resistance to blood flow in the pulmonary circulation. It is not directly related to left ventricular afterload.
D. Central venous pressure (CVP) in (option D) is incorrect because: CVP reflects the pressure in the right atrium and is an indicator of right-sided cardiac function. It is not specifically related to left ventricular afterload reduction.
Therefore, to assess the effectiveness of medications in reducing left ventricular afterload, the nurse should monitor the systemic vascular resistance (SVR).

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The emergency department nurse evaluates that fluid resuscitation for a 70 kg patient in shock is effective by finding which one of the following?

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Naxlex Comprehensive Predictor Exams

Which conditions can cause hypovolemic shock? Select all that apply.

Correct Answer is ["A","B","C","D"]

Explanation

To determine the effectiveness of medications that a patient has received to reduce left ventricular afterload, which hemodynamic parameter will the nurse monitor?

Correct Answer is B

Explanation

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