The nurse is reviewing the laboratory values for the client diagnosed with heart failure and notes the sodium level is 128 mEq/L (normal 135-145mEq/L). How should the nurse interpret this finding?

There is an increased risk for cardiac dysrhythmias

There is dilutional hyponatremia and fluid retention

There is an imbalance in the sodium-potassium pump

The client is in acute renal failure related to heart failure

Answer and Explanation

The Correct Answer is B

A.   Increased risk for cardiac dysrhythmias: While hyponatremia can sometimes contribute to cardiac dysrhythmias, it's not the primary concern in this case. The main issue is fluid overload.
B.   Hyponatremia, or low sodium levels, is often associated with heart failure. In this condition, the heart's reduced pumping ability leads to fluid retention, which dilutes the sodium concentration in the blood.
C.   Imbalance in the sodium-potassium pump: While this can contribute to electrolyte imbalances, it's not the direct cause of hyponatremia in heart failure.
D.   Acute renal failure: While heart failure can lead to acute kidney injury, hyponatremia is primarily a result of fluid overload rather than kidney dysfunction.

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Correct Answer is B

Explanation

A. The pacemaker wire for a DDD device is placed in the right atrium and right ventricle, not the left ventricle.
B. This is the correct description of a DDD pacemaker, which has wires in both the right atrium and right ventricle to monitor and pace both chambers when needed.
C. This is incorrect because a DDD pacemaker does not pace both ventricles.
D. This is inaccurate because a DDD pacemaker does not fire with every heartbeat; it only fires when the heart’s natural electrical activity is insufficient.

Correct Answer is ["11"]

Explanation

The patient weighs 121 lbs, which is approximately 55 kilograms (121 ÷ 2.2).

Next, multiply the patient's weight in kilograms by the dosage prescribed, which is 20 units/kg. This results in a total dosage of 1100 units (55 kg × 20 units/kg).

The medication is supplied as 25,000 units in 250 mL, so to find out how many mL of medication is needed, set up a proportion: 25,000 units is to 250 mL as 1100 units is to X mL. Solving for X gives you 11 mL (1100 units × 250 mL ÷ 25,000 units).

Therefore, the nurse will administer 11 mL of Heparin to the patient.

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LAB	Result	Normal Range
Potassium	2.8 mEq/L	3.5-5.3mEq/L
Sodium	133 mEq/L	135-145 mEqL
Chloride	90 mEq/L	97-107 mEqL
Glucose	200 mg/dL	70mg/dL to 110mg/dL
Magnesium	2.5 mg/dL	1.6-2.2 mg/dL

LAB	Result	Normal Range
Potassium	2.8 mEq/L	3.5-5.3mEq/L
Sodium	133 mEq/L	135-145 mEqL
Chloride	90 mEq/L	97-107 mEqL
Glucose	200 mg/dL	70mg/dL to 110mg/dL
Magnesium	2.5 mg/dL	1.6-2.2 mg/dL
Calcium	8.0 mg/dL	8.2-10.2 mg/dL:

The nurse is reviewing the laboratory values for the client diagnosed with heart failure and notes the sodium level is 128 mEq/L (normal 135-145mEq/L). How should the nurse interpret this finding?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is B

Explanation

Correct Answer is ["11"]

Explanation

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The nurse is reviewing the laboratory values for the client diagnosed with heart failure and notes the sodium level is 128 mEq/L (normal 135-145mEq/L). How should the nurse interpret this finding?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is providing discharge instructions to a client who has had a permanent pacemaker inserted. The information in the chart indicates that the device is a DDD. What will the nurse explain about this pacemaker?

Correct Answer is B

Explanation

A patient is to receive a bolus of Heparin 20 units/kg. The patient weighs 121 Ibs. The medication is supplied as 25,000 units/250 mL. How many Ml will the nurse give? (round to the nearest whole number)

Correct Answer is ["11"]

Explanation

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