The nurse needs to administer an IM injection of 2.4 million units of penicillin G. it is supplied in a vial of 5,000,000 units of powder for injection. Instructions state to dilute with 8 mL of sterile water. How manu mL should the nurse draw up?

Correct Answer: B

Rationale: To administer an IM injection of 2.4 million units of penicillin G, the nurse should first reconstitute the penicillin powder with sterile water as per the instructions. The vial contains 5,000,000 units of the powder and when diluted with 8 mL of sterile water, the resulting concentration would be:

Correct Answer: C

Rationale: Hypokalemia is indicated in Ms. CC's decreased muscle tone and deep tendon reflexes. Potassium is an essential electrolyte for muscle function, including maintaining muscle tone and supporting proper nerve conduction for reflexes. When potassium levels are low, it can lead to muscle weakness, decreased muscle tone, and reduced deep tendon reflexes. With severe diarrhea, potassium is often lost along with fluids, leading to a potential electrolyte imbalance such as hypokalemia. Additionally, hypokalemia can cause cardiac arrhythmias, muscle cramps, and fatigue, further supporting the presence of this electrolyte imbalance in Ms. CC.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: A

Rationale: Monitoring daily intake and output is the most reliable method for assessing fluid balance in a patient. By accurately measuring the amount of fluids taken in through foods, drinks, and IV fluids, as well as the amount of fluids eliminated through urine, stool, vomit, and other means, healthcare providers can closely track the body's fluid balance. Discrepancies between intake and output can indicate potential issues such as dehydration or fluid overload. This method provides quantitative data that can guide appropriate interventions and treatment adjustments to maintain the patient's fluid balance within normal limits. While vital signs, daily weight, and skin turgor are also important indicators of fluid status, they may not always provide as specific or accurate information as the direct measurement of intake and output.

Correct Answer: D

Rationale: The last step when inserting an IV cannula is to place a sterile dressing over the insertion site. This helps to protect the site from contamination and reduce the risk of infection. A sterile dressing also helps to maintain the integrity of the insertion site and prevent any foreign materials from entering the wound. Additionally, the dressing provides a barrier between the cannula site and the external environment, promoting healing and reducing the chance of complications.