A nurse in an emergency department is caring for a client who has diabetic ketoacidosis (DKA) and a blood glucose level of 925 mg/dL. The nurse should anticipate which of the following prescriptions from the provider?

Oral hypoglycemic medications

0.9% sodium chloride IV bolus

Dextrose 5% in 0.45% sodium chloride

Glucocorticoid medications

Answer and Explanation

The Correct Answer is B

Choice A Reason: This choice is incorrect because oral hypoglycemic medications are not eﬀective for treating DKA. Oral hypoglycemic medications are drugs that lower the blood glucose level by stimulating insulin secretion or increasing insulin sensitivity. They may be used for clients who have type 2 diabetes mellitus, but they do not work for clients who have type 1 diabetes mellitus or DKA.

Choice B Reason: This choice is correct because 0.9% sodium chloride IV bolus is an eﬀective treatment for DKA. 0.9% sodium chloride is an isotonic solution that contains the same concentration of solutes as blood plasma. It may be used for clients who have ﬂuid loss, dehydration, or shock. In DKA, the body breaks down fat for energy due to insulin deficiency or resistance, resulting in high levels of ketones and acids in the blood. This causes osmotic diuresis, dehydration, electrolyte imbalance, and metabolic acidosis. Therefore, administering 0.9% sodium chloride IV bolus can help to restore ﬂuid volume and correct electrolyte imbalance.

Choice C Reason: This choice is incorrect because dextrose 5% in 0.45% sodium chloride is not indicated for treating DKA. Dextrose 5% in 0.45% sodium chloride is a hypertonic solution that contains more solutes than blood plasma. It may be used for clients who have hyponatremia, cerebral edema, or malnutrition, but it can worsen hyperglycemia and osmotic diuresis in clients who have DKA.

Choice D Reason: This choice is incorrect because glucocorticoid medications are not indicated for treating DKA. Glucocorticoid medications are drugs that mimic the eﬀects of cortisol, a hormone that regulates stress response and inﬂammation. They may be used for clients who have allergic reactions, asthma, or autoimmune diseases, but they can increase blood glucose levels and inhibit insulin action in clients who have DKA.

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Correct Answer is A

Explanation

Choice A Reason: Dobutamine is a positive inotropic agent that increases the contractility of the heart and improves cardiac output. This leads to increased renal perfusion and urine output, which reduces the ﬂuid overload and edema associated with heart failure. Therefore, this choice is correct.

Choice B Reason: Dobutamine does not have a direct eﬀect on blood glucose level. It may cause hyperglycemia as a side eﬀect, but this is not an indication of its eﬀectiveness. Therefore, this choice is incorrect.

Choice C Reason: Dobutamine may cause a slight decrease in blood pressure due to vasodilation, but this is not its main therapeutic eﬀect. A significant decrease in blood pressure may indicate hypovolemia, hypotension, or shock, which are adverse eﬀects of dobutamine. Therefore, this choice is incorrect.

Choice D Reason: Dobutamine also has a positive chronotropic eﬀect, which means it increases the heart rate. However, this is not a desired outcome for a client with heart failure, as it increases the oxygen demand of the heart and may worsen the condition. Therefore, this choice is incorrect.

A. 54 percent B. 36 percent C. 18 percent D. 9 percent

Correct Answer is A

Explanation

Choice A Reason: To calculate the total body surface area (TBSA) affected by burns using the Rule of Nines, the body is divided into sections, each representing a percentage of TBSA:

Front of one leg = 9%
Back of one leg = 9%
Front of one arm = 4.5%
Back of one arm = 4.5%

Now for the calculation:

Both legs (front and back):
- Front of both legs = 9% × 2 = 18%
- Back of both legs = 9% × 2 = 18%
- Total for both legs = 18% + 18% = 36%
Both arms (front and back):
- Front of both arms = 4.5% × 2 = 9%
- Back of both arms = 4.5% × 2 = 9%
- Total for both arms = 9% + 9% = 18%
Total TBSA:
- Legs (36%) + Arms (18%) = 54%

The nurse should document burns to 54% of the client's total body surface area (TBSA).

Choice B Reason:This choice is incorrect because it uses the original rule of nines for adults, not children. It also does not account for the depth and degree of the burns.

Choice C Reason: This choice is incorrect because it uses the original rule of nines for adults, not children. It also does not account for the depth and degree of the burns.

Choice D Reason: This choice is incorrect because it uses a random percentage that does not correspond to any rule or calculation.

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A nurse in an emergency department is caring for a client who has diabetic ketoacidosis (DKA) and a blood glucose level of 925 mg/dL. The nurse should anticipate which of the following prescriptions from the provider?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse in the ICU is caring for a client who has heart failure and is receiving a dobutamine drip. The nurse should identify that which of the following findings indicates that the medication is eﬀective?

Correct Answer is A

Explanation

A nurse in an emergency department is caring for an adult client who has burns on the front and back of both his legs and arms. Using the rule of nines, the nurse should document burns to which percentage of the client's total body surface area (TBSA)?

Correct Answer is A

Explanation

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