The nurse obtains a monitor strip on a patient who has had a myocardial infarction and makes the following analysis: P wave not apparent, ventricular rate 196, R-R interval regular, P-R interval not measurable, QRS complex wide and distorted, QRS duration 0.18 second. The nurse interprets the patient's cardiac rhythm as;

Mean arterial pressure (MAP) is a measure of the average pressure within the arteries during one cardiac cycle. It represents the perfusion pressure that drives blood flow to organs and tissues. In the context of shock, a MAP of 50 mm Hg is considered low and indicates inadequate tissue perfusion.
To improve tissue perfusion and restore blood pressure, the nurse would anticipate administering large volumes of intravenous fluids, such as Lactated Ringers (LR). Fluid resuscitation aims to increase intravascular volume and improve cardiac output, ultimately leading to improved tissue perfusion.
B. Cardiac Output (CO) is 4 L/min in (option A) is incorrect because Cardiac output represents the volume of blood pumped by the heart per minute. While a low cardiac output may require intervention, it does not specifically indicate the need for large volumes of fluid administration.
C. Stroke volume is 70 ml/beat in (option C) is incorrect because Stroke volume refers to the volume of blood ejected by the heart with each contraction. While stroke volume can be an important determinant of cardiac output, it alone does not indicate the need for large fluid volumes.
D. The heart rate is 80 bpm in (option D) is incorrect because: Heart rate is the number of heartbeats per minute. While the heart rate can impact cardiac output, it does not provide direct information about fluid resuscitation needs.

Hypovolemic shock is a life-threatening condition resulting from severe blood or fluid loss. The patient in this scenario exhibits signs of hypovolemic shock, such as low blood pressure, tachycardia, cool and clammy skin, and decreased urine output.
When assessing the prescription options, the nurse should consider the appropriateness of each intervention for hypovolemic shock. Plasmanate is a type of plasma protein fraction that is used for volume expansion in certain situations. However, in hypovolemic shock, the primary intervention is to restore intravascular volume promptly. Plasmanate alone may not be sufficient for rapid-volume resuscitation.
In hypovolemic shock, the initial management typically involves the administration of crystalloid solutions, such as Lactated Ringers or Normal Saline, to restore intravascular volume. Therefore, the prescription of Plasmanate as the primary intervention raises concerns and should be questioned by the nurse.
A. Dopamine (Intropin) 12 mcg/min in (option A) is incorrect because: Dopamine is a vasopressor medication used to increase blood pressure and cardiac output. It is a suitable option for hypovolemic shock to support blood pressure and tissue perfusion.
B. Dobutamine (Dobutrex) 5 mcg/kg/min in (option B) is incorrect because: Dobutamine is an inotropic medication that helps improve cardiac contractility and cardiac output. It can be beneficial in cases of hypovolemic shock with signs of poor cardiac function.
D. Bumetanide (Bumex) 1 mg IV in (option D) is incorrect because: Bumetanide is a loop diuretic used to promote diuresis. However, in the context of hypovolemic shock, diuretics are generally not the first-line treatment as they can further reduce intravascular volume and worsen the patient's condition.
It is essential for the nurse to consult with the healthcare provider regarding the prescription order of Plasmanate and consider alternative interventions for rapid volume resuscitation in hypovolemic shock.