The K laboratory report shows a level of 5.2 mEq/L (Normal 3.5-5.0 mEq/L). What is the most important assessment for the nurse to make?

Excessive thirst

Irregular heartbeat

Swelling of ankles

Frightening hallucinations

Answer and Explanation

The Correct Answer is B

A. Excessive thirst: Excessive thirst, polydipsia, is not the most immediate concern with a potassium level of 5.2 mEq/L. Potassium levels within this range (slightly elevated) may not directly cause excessive thirst.

B. Irregular heartbeat: Elevated potassium levels can cause dangerous cardiac arrhythmias, including irregular heartbeat. Therefore, the most important assessment is monitoring for signs of cardiac disturbances.

C. Swelling of ankles: Swelling of the ankles is more commonly associated with fluid retention or circulatory issues and is not directly linked to minor elevations in potassium levels. Although elevated potassium can affect fluid balance, it does not immediately present as swelling.

D. Frightening hallucinations: Hallucinations can be caused by a variety of factors, but they are not a direct effect of slightly elevated potassium levels. More serious symptoms like cardiac arrhythmias are a more immediate concern with abnormal potassium levels.

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Correct Answer is ["42"]

Explanation

Calculation:

Convert the infusion rate from milliliters per hour (mL/hr) to milliliters per minute (mL/min).

Infusion rate in mL/min = 125 mL/hr / 60 min/hr

= 2.0833... mL/min.

Tubing drop factor = 20 gtt/mL.

Calculate the flow rate in drops per minute (gtt/min).

Flow rate (gtt/min) = Infusion rate (mL/min) × Tubing drop factor (gtt/mL)

= 2.0833... mL/min × 20 gtt/mL

= 41.666... gtt/min.

Round the answer to the nearest whole number.

= 42 gtt/min.

A. Osmosis B. Filtration C. Diffusion D. Active transport

Correct Answer is A

Explanation

A. Osmosis: Osmosis is the process of moving water across a semi-permeable membrane from an area of lower particle concentration (lower solute concentration) to an area of higher particle concentration (higher solute concentration). This is a passive process and doesn’t require energy.

B. Filtration: Filtration is the process by which fluid and solutes are forced through a membrane by hydrostatic pressure, from an area of higher pressure to an area of lower pressure.

C. Diffusion: Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration, not specifically involving water or particle concentration differences.

D. Active transport: Active transport requires energy to move particles against a concentration gradient (from lower to higher concentration). This process differs from osmosis, which is a passive process.

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The K laboratory report shows a level of 5.2 mEq/L (Normal 3.5-5.0 mEq/L). What is the most important assessment for the nurse to make?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The physician orders 1000 mL lactated Ringer's to infuse at 125 mL/h for a postoperative patient. Tubing drop factor is 20 gtt/mL. Calculate the flow rate in drops per minute.

Correct Answer is ["42"]

Explanation

The nurse is teaching about the process of passively moving water from an area of lower particle concentration to an area of higher particle concentration. Which process is the nurse describing?

Correct Answer is A

Explanation

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