Calculate the P/F ratio using the following:

P-Pa02 82

F-F102 60%

The P/F ratio is used to assess the degree of hypoxemia in patients, particularly those with acute respiratory distress syndrome (ARDS). A P/F ratio of less than 300 suggests mild ARDS, less than 200 suggests moderate ARDS, and less than 100 indicates severe ARDS.

Given:

PaO₂ (Partial pressure of oxygen in arterial blood) = 82 mm Hg

FiO₂ (Fraction of inspired oxygen) = 60% = 0.60 (in decimal form)

Answer and Explanation

The Correct Answer is ["136.67"]

Calculation:

The P/F ratio is calculated as:

P/F ratio= PaO₂÷ FiO₂

P/F ratio = 82÷0.60

=136.67

Nursing Test Bank

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Free Nursing Study Resources

Correct Answer is A

Explanation

A. Avoid positioning the client supine: Orthopnea is the inability to breathe comfortably while lying flat, so the nurse should avoid placing the client in a supine position and instead elevate the head of the bed.

B. Limit the client's activity level: While activity may need to be adjusted, this is not the primary concern for orthopnea.

C. Administer supplemental oxygen at all times: Oxygen may be necessary, but the key issue with orthopnea is the need to avoid lying flat, not necessarily the need for constant supplemental oxygen.

D. Teach the client deep breathing and coughing exercises: While beneficial for other conditions, this does not directly address orthopnea, which is primarily positional.

Correct Answer is ["50"]

Explanation

Available: Octreotide 0.5 mg in 100 mL of fluid

Calculation:

Convert the available dose to mcg:

0.5 mg = 500 mcg

Determine the concentration:

500 mcg in 100 mL = 5 mcg/mL

Calculate the infusion rate:

Desired rate: 50 mcg/hour
Infusion rate (mL/hour) = Desireddose(mcg/hour)÷ Concentration(mcg/mL)

= 50 mcg/hour ÷ 5 mcg/Ml

= 10 mL/hour

The infusion rate of 10 mL/hour will deliver 50 mcg/hour of Octreotide, as prescribed.

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Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is reviewing a newly admitted client's electronic health record, which notes a history of orthopnea. What nursing action is most clearly indicated?

Correct Answer is A

Explanation

Order: Octreotide continuous infusion via pump at 50 mcg/hour Available: Octreotide 0.5 mg in 100 mL of fluid Infuse at

Correct Answer is ["50"]

Explanation

What action would be most helpful to the nurse in determining whether the chest pain of a patient who has just entered the emergency department is cardiac in origin?

A patient with cirrhosis is becoming lethargic and confused. Which of the following labs does the nurse expect the HCP (health care provider) to order?

The physician orders dopamine at 10 mcg/kg/min. The pharmacy provides dopamine 800mg in 250 ml of D5W. What is the hourly IV pump rate? The patient weighs 85 kilograms. Order: Dopamine at 10 mcg/kg/min Available: Dopamine 800 mg in 250 mL D5W Patient weight: 85 kg

Which of the following is not a direct cause of ARDS?

Which of the following is not a cause of high-output heart failure?

A nurse observes the following during the physical exam. How will the nurse document this finding?

Which of the following is an indication of Left sided heart failure?

. A nurse is discussing management of hypertension with a patient. Which patient statement indicates that additional teaching about the relationship between hypertension and acute coronary syndrome (ACS) is needed?