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?

Administer hydrocortisone (Solu-Cortef) 100 mg IV.

Give PRN furosemide (Lasix) 40 mg IV.

Increase normal saline infusion to 250 mL/hr.

Titrate norepinephrine (Levophed) to keep systolic BP >90 mm Hg.

Answer and Explanation

The Correct Answer is C

In septic shock, one of the key goals of management is to restore and maintain adequate intravascular volume. However, in this case, the patient's urine output is low (30 mL/hr for the past 3 hours), suggesting inadequate renal perfusion and potential fluid overload.
Administering additional normal saline at an increased rate (250 mL/hr) without addressing the low urine output could potentially exacerbate fluid overload and further compromise the patient's condition.
A. Administer hydrocortisone (Solu-Cortef) 100 mg IV in (option A) is incorrect because: Hydrocortisone is commonly used in septic shock to help stabilize blood pressure and modulate the inflammatory response.
B. Giving PRN furosemide (Lasix) 40 mg IV in (option B) is incorrect because Furosemide, a loop diuretic, can be administered as needed to address fluid overload or to increase urine output if there is evidence of volume overload.
D. Titrate norepinephrine (Levophed) to keep systolic BP >90 mm Hg in (option D) is incorrect because: Norepinephrine is a vasopressor commonly used in septic shock to increase systemic vascular resistance and maintain adequate blood pressure.

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Correct Answer is A

Explanation

This pathway represents the normal sequence of electrical impulses that coordinate the contraction and relaxation of the heart chambers.
The electrical signal originates from the sinoatrial (SA) node, which is often referred to as the natural pacemaker of the heart. It is located in the right atrium and generates the electrical impulses that initiate each heartbeat. From the SA node, the electrical signal travels to the atrioventricular (AV) node, which is located at the junction between the atria and ventricles.
After passing through the AV node, the electrical impulse travels through the bundle of His (also known as the atrioventricular bundle) and divides into the right and left bundle branches. These branches continue the conduction pathway and deliver the electrical signal to the Purkinje fibers.
The Purkinje fibers spread the electrical impulse rapidly throughout the ventricles, stimulating the contraction of the ventricular muscle and allowing for efficient pumping of blood out of the heart.
Therefore, the correct sequence of the normal conduction pathway in the heart is:
A. SA node - AV node - bundle of His - bundle branches - Purkinje fibers.

A. QTc interval 0.33 to 0.47 seconds B. QT interval that varies with HR C. QRS interval <0.12 seconds D. PR interval 0.12 to 0.24 seconds

Correct Answer is A

Explanation

The QTc (corrected QT) interval is a measure of the time it takes for the ventricles to depolarize and repolarize during a cardiac cycle. It is corrected for heart rate (HR) to account for variations in the cardiac cycle length.
The normal range for the QTc interval varies depending on the calculation method used but generally falls within 0.36 to 0.44 seconds. In the given options, the range of 0.33 to 0.47 seconds for the QTc interval is wider than the normal range, suggesting a prolonged QTc interval, which can be indicative of a potential risk for arrhythmias, including ventricular tachycardia and torsades de pointes.
B. QT interval that varies with HR in (option B) is normal because The QT interval alone can vary with heart rate, and this is considered a normal physiological adaptation.
C. QRS interval <0.12 seconds in (option C) is normal because The QRS interval represents the time it takes for ventricular depolarization and is normally less than 0.12 seconds.
D. PR interval 0.12 to 0.24 seconds in (option D) is normal because The PR interval represents the time it takes for atrial depolarization and conduction through the AV node. The normal range is typically 0.12 to 0.20 seconds.

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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?

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