A nurse is preparing to administer metoprolol 5 mg IV bolus to a client for heart rate control. Available is metoprolol injection 1 mg/mL. How many mL should the nurse administerperdose?

Answer and Explanation

The Correct Answer is ["5"]

To calculate how many milliliters (mL) of metoprolol 1 mg/mL solution should be administered to deliver a 5 mg IV bolus dose, you can use the following formula:

Dose (mL) = Desired dose (mg) / Concentration (mg/mL)

In this case:

Desired dose = 5 mg

Concentration = 1 mg/mL

Dose (mL) = 5 mg / 1 mg/mL = 5 mL

Therefore, the nurse should administer 5 mL of metoprolol 1 mg/mL solution per dose to deliver a 5 mg IV bolus for heart rate control.

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Free Nursing Study Resources

Correct Answer is C

Explanation

A. "Dehydration Is the primary reason for the pain that is experienced during a sickle cell crisis; try to increase your son's fluid intake."

This response is not the best choice because while dehydration can indeed exacerbate sickle cell crises and lead to complications, it is not the primary reason for the pain experienced during a sickle cell crisis. The severe pain during a crisis is primarily due to vaso-occlusion, where sickled red blood cells block blood flow in the small blood vessels, leading to tissue ischemia and pain. While adequate hydration is important in managing sickle cell disease, it alone does not address the underlying cause of the pain during a crisis.

B. "We really don't know what causes the pain that is experienced during a sickle cell crisis."

This response is not accurate and not the best choice because the medical community does understand the underlying cause of pain during a sickle cell crisis. It is primarily due to vaso-occlusion, as mentioned earlier, where sickled red blood cells block blood flow in the blood vessels.

C. "Sickled cells get clogged in the blood vessels, preventing blood from getting to the tissues, which causes the severe pain of a crisis."

This response is the best choice because it provides an accurate and clear explanation of why individuals with sickle cell anemia experience severe pain during a sickle cell crisis. It addresses the underlying mechanism of vaso-occlusion, where sickled red blood cells block blood flow in the small blood vessels, leading to tissue ischemia and severe pain.

D. "You will need to discuss this with your doctor. I cannot explain why this pain occurs to your

son."

This response is not the best choice because the nurse should be able to provide basic information about the disease and its symptoms to the mother. It's important for healthcare professionals to educate patients and their families about their condition to improve understanding and facilitate better management and coping strategies.

A. The blood was infused too quickly and overwhelmed the client's circulatory system. B. The donor blood was incompatible with that of the client. C. The client had a sensitivity reaction to a plasma protein in the blood. D. Antibodies to donor leukocytes remained in the blood.

Correct Answer is B

Explanation

A. The blood was infused too quickly and overwhelmed the client's circulatory system:

While infusing blood too quickly can lead to circulatory overload and related complications like heart failure or pulmonary edema, it is not the cause of an acute hemolytic transfusion reaction. Acute hemolytic reactions occur due to immune responses against incompatible donor blood.

B. The donor blood was incompatible with that of the client:

This is the correct answer. An acute hemolytic transfusion reaction happens when there is an incompatibility between the donor's blood and the recipient's blood. This can occur due to mismatched ABO blood types or Rh factor, leading to the recipient's immune system attacking and destroying the transfused red blood cells.

C. The client had a sensitivity reaction to a plasma protein in the blood:

Sensitivity reactions to plasma proteins can occur, but they typically result in different types of transfusion reactions, such as allergic reactions or febrile non-hemolytic reactions. These reactions are caused by antibodies to specific plasma proteins and are not the cause of acute hemolytic transfusion reactions.

D. Antibodies to donor leukocytes remained in the blood:

This option refers to febrile non-hemolytic transfusion reactions, which occur due to antibodies against donor leukocytes. However, this type of reaction is distinct from acute hemolytic reactions, which are primarily caused by ABO or Rh incompatibility.

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A nurse is preparing to administer metoprolol 5 mg IV bolus to a client for heart rate control. Available is metoprolol injection 1 mg/mL. How many mL should the nurse administerperdose?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The mother of a teenage boy with sickle cell anemia asks the nurse why her son has such horrible pain during a sickle cell crisis. Which of the following is the best response by the nurse?

Correct Answer is C

Explanation

A client is being treated in the ICU after a medical error resulted in an acute hemolytic transfusion reaction. What was the etiology of this client's adverse reaction?

Correct Answer is B

Explanation

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