How does the emergency department nurse caring for a critically ill with septic shock recognize that severe tissue hypoxia is present?

Partial thromboplastin time 64 seconds

Lactate 9.0 mmol/L

Potassium 2.8 mEq/L (2.8 mmol/L)

PaCO2 58 mm Hg

Answer and Explanation

The Correct Answer is B

Lactate is a by-product of anaerobic metabolism that accumulates when there is insufficient oxygen supply to meet cellular metabolic demands. In the context of severe tissue hypoxia, such as in septic shock, the body may resort to anaerobic metabolism, leading to increased lactate production and elevated lactate levels in the blood.
Elevated lactate levels, typically above 4.0 mmol/L, are indicative of tissue hypoxia and inadequate oxygenation at the cellular level. Higher lactate levels, such as 9.0 mmol/L, suggest more severe tissue hypoxia and increased anaerobic metabolism.
A. Partial thromboplastin time (PTT) 64 seconds in (option A) is incorrect because: PTT is a laboratory test that evaluates the intrinsic pathway of the coagulation cascade. While coagulation abnormalities may occur in septic shock, PTT alone does not specifically indicate severe tissue hypoxia.
C. Potassium 2.8 mEq/L (2.8 mmol/L) (option C) is incorrect because Low potassium levels (hypokalemia) can be a concern in septic shock, but it does not directly indicate severe tissue hypoxia.
D. PaCO2 58 mm Hg in (option D) is incorrect because: PaCO2 refers to the partial pressure of carbon dioxide in arterial blood and is a measure of the respiratory status. While an elevated PaCO2 can be a sign of respiratory acidosis, it is not specific to severe tissue hypoxia.
Therefore, in a critically ill patient with septic shock, an elevated lactate level, such as 9.0 mmol/L, indicates severe tissue hypoxia and inadequate oxygenation at the cellular level

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Correct Answer is ["9000"]

Explanation

4 mL × body weight in kg × percentage of burn = total fluid volume for the first 24 hours Then, divide the total fluid volume by 2 to determine the fluid volume for the first 8 hours.

In this case, the patient weighs 90 kg and has a 50% burn injury.

4 mL × 90 kg × 50% = 18,000 mL (total fluid volume for 24 hours)

18,000 mL / 2 = 9,000 mL (fluid volume for the first 8 hours)

Therefore, the nurse would infuse the intravenous fluid resuscitation at a rate of 9,000 mL over the first 8 hours.

A. Nitroglycerine (Tridil). B. Atenolol (Tenormin). C. Dobutamine (Dobutrex). D. Norepinephrine (Levophed).

Correct Answer is D

Explanation

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.

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How does the emergency department nurse caring for a critically ill with septic shock recognize that severe tissue hypoxia is present?

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Naxlex Comprehensive Predictor Exams

An emergency room nurse cares for a patient admitted with a 50% burn injury. The patient weighs 90 kg. Using the Parkland formula, calculate the rate (1st 8 hrs.) at which the nurse would infuse intravenous fluid resuscitation. (Record your answer using a whole number.)

Correct Answer is ["9000"]

Explanation

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?

Correct Answer is D

Explanation

A 31-year-old male patient with burn injuries is admitted to the burn unit. Which priority does the nurse anticipate within the first 24 hours?

A student is caring for a patient who suffered massive blood loss after trauma. How does the student correlate the blood loss with the patient's mean arterial pressure (MAP)?

A 78-kg patient with septic shock has a urine output of 30 mL/hr for the past 3 hours. The pulse rate is 120/minute and the central venous pressure and pulmonary artery wed pressure are low. Which order by the health care provider will the nurse question?

A 30-year-old female patient is admitted to the emergency department with two systemic inflammatory response syndrome variables: temperature of 100.2°F (35°C) and high blood sugar. Which intervention from the sepsis resuscitation bundle does the nurse initiate?

Patients in shock receive fresh frozen plasma to replace which one of the following?

Which of the following ECG rhythm interval measures is considered abnormal?

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The emergency department nurse is assessing a patient who is in the compensatory stage of hypovolemic shock. Which manifestations does the nurse expect? Select all that apply.