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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Correct Answer is D

Explanation

A. Diltiazem is a calcium channel blocker that can be used to manage conditions like atrial fibrillation or hypertension by slowing the heart rate and reducing blood pressure. However, it may not be the most appropriate drug in the acute setting for heart failure with dyspnea.
B. Nitroglycerine is a vasodilator that helps reduce preload and afterload, which can be beneficial in heart failure. However, it primarily works by reducing the workload on the heart and may help with fluid overload but may not directly address anxiety.
C. Verapamil is another calcium channel blocker that slows the heart rate and reduces the heart's workload. While it may be useful for controlling tachyarrhythmias, it is not the best option for managing acute heart failure with severe dyspnea and anxiety.
D. Morphine is an opioid that can be used in acute heart failure to reduce both anxiety and respiratory distress. It works by reducing the sympathetic nervous system response, decreasing heart rate and blood pressure, and providing a sense of calm, which reduces anxiety. It also reduces preload by venodilation and helps manage severe dyspnea.

A. Cryoprecipitate and red blood cells B. Platelets and fresh frozen plasma C. Packed red blood cells and platelets D. Fresh frozen plasma and cryoprecipitate

Correct Answer is C

Explanation

A. Cryoprecipitate is indicated for low fibrinogen or clotting factor issues, but the client’s primary issue
here is anemia and thrombocytopenia.
B. FFP is used to replace clotting factors. While it could be considered in certain situations, in this case, the primary concern is the severe anemia and thrombocytopenia.
C. This is the most appropriate choice, as the patient has low hemoglobin (anemia) and a very low platelet count, both of which require packed red blood cells and platelets.
D. This combination is typically used for clotting factor issues, not anemia and thrombocytopenia.

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			Male: 14- 17.3 g/dL
Hematocrit	26%	24%	Female: 36%-48% Male: 42%-52%
Platelets	35,000mm3	20,000mm3	150,000- 450,000mm3
RBC	4.5 mm3	3mm3	Female: 4.01-5.51 million/mm3 Male: 4.51-

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

The nurse is caring for a client with acute heart failure who is severely dyspneic and extremely anxious. The nurse anticipates that increased cardiac output and decreased anxiety may be promoted by the IV administration of:

Correct Answer is D

Explanation

Correct Answer is C

Explanation

When using an ECG rhythm strip to quickly estimate the ventricular rate for a client, the nurse should:

The nurse is preparing to start a transfusion of packed red blood cells for a client with a hemoglobin of 5.4 g/dL. (normal Female: 11.7-15.5 g/dL; Male: 14-17.3 g/dL). Which IV site should the nurse use?

Which intervention(s) should the nurse include in the post-operative care of a client following a permanent pacemaker insertion? (SELECT ALL THAT APPLY)

The client diagnosed with acute heart failure is prescribed an infusion of dopamine at a low dose. Which assessment parameter should the nurse use to best evaluate the effectiveness of this medication?

Upon assessment of the client's lungs, the nurse hears continuous, high-pitched, musical sounds. This should be documented as:

The nurse is caring for a client who is in the later stages of left-sided heart failure. Which chief complaint would the nurse expect the client to report?

The client problem of Activity Intolerance related to decrease in cardiac reserve is identified for a client with chronic heart failure. Which intervention should the nurse include in the plan of care related to this problem?