A 66-year-old female patient in septic shock has received fluid resuscitation, but their mean arterial pressure (MAP) is 52 mmHg. The nurse anticipates the administration of which one of the following?
Nitroglycerine (Tridil).
Atenolol (Tenormin).
Dobutamine (Dobutrex).
Norepinephrine (Levophed).
The Correct Answer is D
Norepinephrine is a vasopressor medication commonly used in the management of septic shock. It acts as a potent vasoconstrictor to increase systemic vascular resistance and improve blood pressure. By constricting blood vessels, norepinephrine helps restore tissue perfusion and improve organ function.
A. Nitroglycerine (Tridil) in (option A) is incorrect because: Nitroglycerine is a vasodilator and would further lower blood pressure. It is not suitable for a patient with septic shock who already has low blood pressure.
B. Atenolol (Tenormin) in (option B) is incorrect because: Atenolol is a beta-blocker and would further decrease heart rate and blood pressure. It is not appropriate for a patient in septic shock who requires intervention to increase blood pressure.
C. Dobutamine (Dobutrex) in (option C) is incorrect because: Dobutamine is an inotropic medication used to increase cardiac output. While it can be helpful in certain types of shock, such as cardiogenic shock, it is not the first-line choice for septic shock when there is inadequate blood pressure response.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Disseminated intravascular coagulation (DIC) is a condition characterized by both widespread activation of the coagulation system and excessive clotting, leading to the consumption of clotting factors and platelets. This results in a prothrombotic state, which can lead to organ dysfunction and bleeding manifestations.
Elevated D-dimer levels are a characteristic finding in DIC. D-dimer is a fibrin degradation product that is elevated when there is excessive fibrin formation and breakdown. Elevated D-dimer indicates ongoing fibrinolysis and activation of the clotting system.
B. Decreased prothrombin time in (option B) is incorrect because: DIC is characterized by consumption of clotting factors, which can result in prolongation of the prothrombin time (PT) as well as other coagulation tests.
C. Decreased partial thromboplastin time in (option C) is incorrect because Similar to the prothrombin time, the partial thromboplastin time (PTT) can also be prolonged in DIC due to the consumption of clotting factors.
D. Elevated fibrinogen level in (option D) is incorrect because, In DIC, there is consumption of fibrinogen along with other clotting factors. Therefore, elevated fibrinogen levels are not consistent with the pathophysiology of DIC.
Correct Answer is D
Explanation
Norepinephrine is a potent vasoconstrictor and inotropic agent commonly used to increase blood pressure in cases of hypotension or shock. However, if the infusion rate is too high, it can lead to excessive vasoconstriction and potentially compromise organ perfusion.
A heart rate of 58 beats/min suggests bradycardia, which can be an indication of excessive vasoconstriction caused by a high dose or rate of norepinephrine infusion. Excessive vasoconstriction can reduce cardiac output and worsen tissue perfusion.
A. Mean arterial pressure is 55 mm Hg in (option A) is incorrect because A mean arterial pressure of 55 mm Hg may be within an acceptable range for a patient receiving norepinephrine infusion, depending on the patient's baseline blood pressure and clinical condition.
B. Systemic vascular resistance (SVR) is elevated in (option B) is incorrect because An elevated SVR indicates increased peripheral vascular resistance and can be a desired effect of norepinephrine infusion to improve blood pressure and perfusion.
C. Pulmonary artery wedge pressure (PAWP) is low in (option C) which is incorrect because A low PAWP may indicate decreased left ventricular preload, which can be a desired effect of norepinephrine infusion to reduce fluid overload in certain clinical conditions.
It is important for the nurse to carefully monitor the patient's hemodynamic parameters, including blood pressure, heart rate, and organ perfusion when titrating norepinephrine infusion to ensure optimal dosing and minimize potential adverse effects. If concerns arise regarding the infusion rate, the healthcare provider should be promptly notified for further evaluation and adjustment of the treatment plan.
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