Which class of medication assists in decreasing preload in acute decompensated heart failure with reduced ejection fraction?

The nurse plans discharge teaching for a patient with chronic heart failure, hypertension, and atrial fibrillation who has prescriptions for digoxin (Lanoxin) and furosemide (Lasix). Appropriate instructions for the patient include which of the following? Select all that apply.

The nurse is caring for a patient with systolic heart failure and an EF of 20%. The patient’s blood pressure is 92/52, HR 60 and respirations are 20 breaths per minute. He states he feels well and has no unusual signs or symptoms to report. The patient is due for his enalapril (Vasotec). The nurse decides to call the provider. Which of the following would the nurse expect the provider to state?

A patient with chronic heart failure, who is prescribed a diuretic and an angiotensin-converting enzyme (ACE) inhibitor and who is on a low sodium diet, tells the home health nurse about a 5-lb weight gain in the past 3 days. What is the nurse’s priority action?

Which of the following conditions increases afterload?

A patient with asthma reports new-onset symptoms of wheezing and shortness of breath. What is the most likely cause of these symptoms?

Of the following ABG results, which one is most consistent with the patient diagnosed with exacerbation of COPD?

Convert the constraints into linear equations by using slack variables.Maximize z = 3×1 + 5x2Subject to: 9×1 + 5×2 ≤ 30 x1 + 5×2 ≤ 40 x1 ≥ 0, x2 ≥ 0

Solve the problem.Jill Sharp, a fitness trainer, has an exercise regimen that includes running, swimming, and walking. She has no more than 12 hours per week to devote to exercise, including at most 4 hours running. She wants to walk at least three times as many hours as she swims. Jill will burn on average 528 calories per hour running, 492 calories per hour swimming, and 348 calories per hour walking. How many hours per week should Jill spend on each exercise to maximize the number of calories she burns? What is the maximum number of calories she will burn? (Hint: Write the constraint involving walking and swimming in the form ≤ 0.) Solve this problem using the Simplex Method.

Introduce slack variables as necessary and write the initial simplex tableau for the problem.Maximize z = 4×1 + x2 subject to: 2×1 + 5×2 ≤ 5 3×1 + 3×2 ≤ 7 x1 ≥ 0, x2 ≥ 0