The nurse is reviewing laboratory results for a group of patients. Which value should be of most concern to the nurse?

Sodium level 140 mEq/L (136-145 mEq/L)

Magnesium level 1.0 mEq/L (1.3-2.1 mEq/L)

Calcium level 10 mg/dL (9-10.5 mg/dL)

Potassium level 3.5 mEq/L (3.5-5 mEq/L)

Answer and Explanation

The Correct Answer is B

A. Sodium level 140 mEq/L (136-145 mEq/L): This sodium level is within the normal range and is not of concern.

B. Magnesium level 1.0 mEq/L (1.3-2.1 mEq/L): This value is below the normal range, indicating hypomagnesemia, which can cause serious complications such as arrhythmias, neuromuscular irritability, and seizures. This is the most concerning value.

C. Calcium level 10 mg/dL (9-10.5 mg/dL): This calcium level is within the normal range and is not concerning.

D. Potassium level 3.5 mEq/L (3.5-5 mEq/L): This potassium level is at the low end of normal. While it is something to monitor, it is not immediately concerning compared to hypomagnesemia.

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Correct Answer is A

Explanation

A. Potassium 2.5 mEq/L: This critically low potassium level can cause life-threatening cardiac dysrhythmias and requires immediate intervention.

B. Urine specific gravity 1.035: While indicative of dehydration, it is not life-threatening and can be addressed after correcting the potassium imbalance.

C. Weight loss of 3% of total body weight: Significant but not the most critical concern in the immediate term.

D. Blood glucose 150 mg/dL: Elevated but not urgent compared to the hypokalemia.

Correct Answer is ["100"]

Explanation

To calculate the IV flow rate, the following formula is used:

Flowrate(gtt/min) = Volume /Time× Dropfactor(gtt/mL)

Given:

Volume = 100 mL
Time = 60 minutes
Drop factor = 60 gtt/mL

Flowrate(gtt/min)= 10060× 60

=1.67×60

=100gtt/min (rounded to the nearest whole number)

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The nurse is reviewing laboratory results for a group of patients. Which value should be of most concern to the nurse?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is collecting data from a client who has acute gastroenteritis. Which of the following data collection findings should the nurse identify as the priority?

Correct Answer is A

Explanation

A nurse is preparing to administer dextrose 5% in water IV to infuse at 100 mL/60 min. The drop factor on the manual IV tubing is 60 gtt/mL. The nurse should set the IV flow rate to deliver how many gtt/min? (Round to the nearest whole number.)

Correct Answer is ["100"]

Explanation

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