A client with heart failure (HF) is waiting in the preoperative area for a scheduled procedure and tells the nurse, "My heart feels like it is beating too fast and I feel faint." After initiating a call for an electrocardiogram (ECG), which assessment data is most important for the nurse to obtain?

Degree of skin elasticity.

Length of capillary refill.

Rhythm of apical pulse.

Volume of pedal pulses.

Answer and Explanation

The Correct Answer is C

Choice A reason: The degree of skin elasticity is a measure often used to assess hydration status, especially in older adults. However, it does not provide direct information about the client's cardiac function or the cause of their current symptoms.

Choice B reason: The length of capillary refill is useful for assessing peripheral perfusion and overall circulatory status. While prolonged capillary refill can indicate poor perfusion, it does not provide specific information about heart rhythm or the cause of palpitations and faintness in a client with heart failure.

Choice C reason: The rhythm of the apical pulse is the most important assessment data to obtain in this scenario. The client's complaint of a fast-beating heart and feeling faint suggests a possible arrhythmia, which could be detected by assessing the rhythm of the apical pulse. This assessment can help identify irregular heartbeats, tachycardia, or other abnormalities that may require immediate intervention.

Choice D reason: The volume of pedal pulses can provide information about peripheral circulation, but it is not as crucial as assessing the heart rhythm in a client experiencing palpitations and faintness. Peripheral pulse volume may not change significantly with certain arrhythmias or cardiac issues that affect the central circulation more directly.

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Correct Answer is D

Explanation

Choice A reason: Serum potassium of 5.0 me/L and serum sodium of 138 me/L are within normal ranges and do not reflect the expected electrolyte imbalances due to dehydration from vomiting and diarrhea.

Choice B reason: Serum potassium of 4.5 me/L and serum sodium of 140 me/L are also within normal ranges. This does not reflect the typical imbalance caused by dehydration.

Choice C reason: Serum potassium of 3.5 me/L and serum sodium of 142 me/L are normal values. They do not indicate the electrolyte disturbances expected with dehydration from vomiting and diarrhea.

Choice D reason: Serum potassium of 3.0 me/L indicates hypokalaemia (low potassium), and serum sodium of 149 me/L indicates hypernatremia (high sodium). These imbalances are expected in a client with a history of fever, vomiting, and diarrhea, as these conditions can lead to loss of potassium and concentration of sodium due to dehydration.

Correct Answer is ["0.4"]

Explanation

Step 1: Determine the concentration of enoxaparin. 60 mg is equivalent to 0.6 mall

Step 2: Set up the ratio to find how many mL corresponds to 40 mg. (40 mg) ÷ (60 mg) = x ÷ (0.6 mL)

Step 3: Solve for x. x = (40 mg) × (0.6 mL) ÷ (60 mg) x = 24 ÷ 60 x = 0.4 mL

So, the nurse should administer 0.4 mL

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A client with heart failure (HF) is waiting in the preoperative area for a scheduled procedure and tells the nurse, "My heart feels like it is beating too fast and I feel faint." After initiating a call for an electrocardiogram (ECG), which assessment data is most important for the nurse to obtain?

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Naxlex Comprehensive Predictor Exams

A client reports a 2-day history of fever, vomiting, and diarrhea. The healthcare provider prescribes serum electrolyte levels to be obtained. Which laboratory results should the nurse expect?

Correct Answer is D

Explanation

The nurse is preparing a prescription for enoxaparin 40 mg subcutaneous (sub) daily. Enoxaparin is available in a pre-filled cartridge labelled, "60 mg per 0.6 mall" How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

Correct Answer is ["0.4"]

Explanation

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