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 ["A","C","D"]

Explanation

A. A patient with blood type A- can receive A- blood, as it matches both the ABO blood group and Rh factor.
B. A patient with A- blood cannot receive AB blood because the blood type is incompatible in terms of both ABO group and Rh factor. AB blood contains both A and B antigens, which could lead to an immune response in a type A patient.
C. O- blood is a universal donor for all blood types, meaning it does not contain A or B antigens and does not have the Rh factor, so it can be given to an A- patient.
D. As already noted, A- blood is compatible with an A- patient because both the ABO group and Rh factor are the same.
E. O+ blood contains the Rh antigen, and since the patient is A-, they cannot receive Rh-positive blood, as this could cause an immune reaction.

A. Prothrombin time, fibrin level and eosinophil count B. Fibrin degradation products, lactic acid and complete blood count C. D-dimer, fibrinogen and fibrin degradation products D. Complete blood count, Complete metabolic panel and prothrombin time

Correct Answer is C

Explanation

A. This test set is incomplete for diagnosing DIC. While PT and fibrinogen are important, the eosinophil count is not a key test for DIC.
B. While fibrin degradation products are useful, lactic acid is not specific for DIC and may indicate other issues. A complete blood count is helpful but not definitive for diagnosing DIC.
C. These are key markers for DIC. An elevated D-dimer indicates clot formation and breakdown, while fibrinogen and fibrin degradation products are used to assess clotting and fibrinolysis, both of which are abnormal in DIC.
D. Complete blood count, complete metabolic panel, and prothrombin time are general tests and can give some clues, but they are not definitive for diagnosing DIC.

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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

The nurse is caring for a patient whose blood type is A-. The nurse knows that this patient can receive the following blood types:(SELECT ALL THAT APPLY)

Correct Answer is ["A","C","D"]

Explanation

The nurse is viewing orders for a client with a suspected diagnosis of disseminated intravascular coagulation (DIC). The nurse recognizes that which laboratory test order set will guide the provider to a diagnosis of DIC?

Correct Answer is C

Explanation

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