Review the lab results in the chart tab

LAB

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:

A client admitted to the Emergency Department (ED) and the cardiac monitor shows multifocal premature ventricular contractions (PVC's). Initial laboratory findings are as follows. The nurse recognizes that the client's PVC's are most likely caused by:

hypermagnesemia.

hypocalcemia.

hypokalemia,

hyperglycemia

Answer and Explanation

The Correct Answer is C

A.   Hypermagnesemia can cause bradycardia and hypotension, but it is less commonly associated with PVCs. This does not align with the lab results provided.
B.   Hypocalcemia can cause arrhythmias, but it is not the most likely cause of PVCs in this case, considering other findings.
C.   Hypokalemia (low potassium) is a known cause of PVCs. The patient's potassium level is 2.8 mEq/L, which is significantly low and most likely contributing to the PVCs.
D.   Although hyperglycemia can affect cardiac function, it is less commonly linked to PVCs compared to electrolyte imbalances, such as hypokalemia.

Nursing Test Bank

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Free Nursing Study Resources

Correct Answer is ["31"]

Explanation

(Volume to be infused (mL) × Drop factor (gtt/mL)) / Time (min).

For the patient prescribed 250 mL of packed red blood cells with a drop factor of 15 gtt/mL over 120 minutes, the calculation would be (250 mL × 15 gtt/mL) / 120 min, which equals 31.25 gtt/min.

Therefore, the nurse should regulate the IV to 31 gtt/min.

A. Petechiae B. Diarrhea C. Intractable vomiting D. Urinary incontinence

Correct Answer is A

Explanation

A. Petechiae (small, pinpoint hemorrhages) are a common manifestation of DIC due to the excessive clotting and subsequent breakdown of clotting factors, leading to bleeding into the skin.
B. Diarrhea is not typically a primary symptom of DIC, although gastrointestinal bleeding can occur in severe cases.
C. Intractable vomiting is not characteristic of DIC, although it could occur in clients with severe bleeding or complications.
D. Urinary incontinence is not a direct manifestation of DIC, although it could occur secondary to neurological or other systemic complications.

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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
Calcium	8.0 mg/dL	8.2-10.2 mg/dL:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient is prescribed 250 mL of packed red blood cells to be transfused over 120 minutes. The drop factor on the tubing is 15 gtt/mL. At what rate should the nurse regulate the IV (gtt/min)? (round to the nearest whole number)

Correct Answer is ["31"]

Explanation

The nurse would assess the client diagnosed with disseminated intravascular coagulation (DIC) for which manifestation of the disorder?

Correct Answer is A

Explanation

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