When assessing the hemodynamic information for a newly admitted patient in shock of unknown etiology, the emergency department nurse will anticipate the administration of large volumes of Lactated Ringers (LR) when which one of the following occurs?

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

Cardiac Out (CO) is 4 L/min

Stroke volume 70 ml/beat

The heart rate is 80 bpm.

Answer and Explanation

The Correct Answer is A

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.

Nursing Test Bank

Test Bank #1: RN Pharmacology Exams Test Bank #2: RN Medical-Surgical Exams Test Bank #3: RN Fundamentals Exams Test Bank #4: RN Maternal-Newborn Exams Test Bank #5: RN Anatomy and Physiology Exams Test Bank #6: RN Obstetrics and Pediatrics Exams Test Bank #7: RN Fluid and Electrolytes Exams Test Bank #9: RN Adult Health Test Bank #10: RN Dosage Calculation Test Bank #11: RN Community Health Exams Test Bank #12: RN Psychology Exams Test Bank #13: RN Nursing Care Of Children Test Bank #14: RN Foundations of Nursing Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Exam #1: RN Comprehensive predictor 2023 proctored exam Exam #2: Ati rn vati comprehensive predictor proctored exam Exam #3: Ati Rn Comprehensive Predictor Proctored Exam 2023 Exam #4: Rn Comprehensive Predictor 2023 Proctored Exam - St. Joseph Exam #5: RN Comprehensive Predictor Proctored Exam (National U CA San Diego) Exam #6: Ati rn comprehensive predictor 2023 retake proctored exam Exam #7: RN Hesi Exit Proctored Exam Exam #8: Hesi RN Exit proctored exam Exam #9: Hesi rn exit proctored exam Exam #10: Hesi Rn compass exit B proctored exam

Free Nursing Study Resources

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.

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).

View Question and Answer

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

When assessing the hemodynamic information for a newly admitted patient in shock of unknown etiology, the emergency department nurse will anticipate the administration of large volumes of Lactated Ringers (LR) when which one of the following occurs?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is caring for a patient who has septic shock. Which assessment finding is most important for the nurse to report to the health care provider?

Correct Answer is B

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

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

The nurse is caring for a patient receiving a continuous norepinephrine (Levophed) IV infusion. Which patient assessment information indicates that the infusion rate may be too high?

A 48-year-old female patient with septic shock presents with a BP of 70/46, pulse 136, respirations 32, temperature 104.0° F, and blood glucose of 246 mg/dl. The following have been ordered. Which order will the nurse accomplish first?

The normal pathway of the conduction system is which one of the following?

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.)

The medical-surgical nurse is caring for a 55-year-old female patient after surgery. The patient's respiratory rate has increased from 12 to 22 breaths/min, and the pulse rate has increased from 86 to 110 beats/min since the patient was last assessed 4 hours ago. What action by the nurse is best?

The emergency department nurse provides care for a 50-year-old male patient with septic shock. The nurse recalls that the renin- angiotensin system is activated during which stage of shock?

When assessing the hemodynamic information for a newly admitted patient in shock of unknown etiology, the emergency department nurse will anticipate the administration of large volumes of Lactated Ringers (LR) when which one of the following occurs?