The patient is a 75-year-old female who has been admitted to the preoperative area in preparation for pacemaker insertion.
She reports that she is undergoing this procedure because her heart rate has been consistently low, she feels constantly fatigued, and she has experienced one episode of fainting due to a low heart rate.
The patient has a history of progressively worsening symptomatic bradycardia and a history of atrial fibrillation, which is controlled by medication.
She has been off anticoagulants for four days in preparation for the procedure.
As the nurse prepares the patient’s plan of care, which four findings would indicate that it would be safe to administer the antibiotic vancomycin?
Potassium level is 4.4 mEq/L (4.4 mmol/L).
The antibiotic is being used for prophylaxis.
Blood urea nitrogen level is 17 mg/dL (6.07 mmol/L).
The dosage of the antibiotic is within the safe range.
The patient has no known allergies.
The patient has a peripheral IV in a large vein.
Correct Answer : A,B,C,E
Choice A rationale
A potassium level of 4.4 mEq/L (4.4 mmol/L) is within the normal range. Potassium is a critical electrolyte in the body, playing key roles in cellular metabolism, protein synthesis, and electrical action potential regulation across cell membranes. Normal potassium levels typically range from 3.5 to 5.1 mmol/L1. Therefore, a potassium level of 4.4 mEq/L indicates that the patient’s potassium level is within the normal range, which is a safe condition for the administration of vancomycin.
Choice B rationale
The use of antibiotics for prophylaxis, or prevention, is a common practice in healthcare, particularly in surgical procedures such as pacemaker insertion. This is done to prevent potential infections that could occur during or after the procedure. Vancomycin is a type of antibiotic that is often used for prophylaxis against infections caused by gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA)3. Therefore, if the antibiotic is being used for prophylaxis, it would be safe to administer vancomycin.
Choice C rationale
A blood urea nitrogen (BUN) level of 17 mg/dL (6.07 mmol/L) is within the normal range. The BUN test measures the amount of urea nitrogen in the blood, which can provide important information about kidney function. Urea nitrogen is a waste product that is created in the liver when protein is metabolized. It is then transported through the blood to the kidneys, which filter out most of the urea nitrogen, leaving a small amount in the blood. Normal BUN levels typically range from 6 to 20 mg/dL4. Therefore, a BUN level of 17 mg/dL indicates that the patient’s kidney function is within the normal range, which is a safe condition for the administration of vancomycin.
Choice E rationale
The absence of known allergies in a patient is a crucial factor in determining the safety of administering any medication, including vancomycin. Allergic reactions to medications can range from mild symptoms such as rash and itching to severe and life-threatening conditions such as anaphylaxis. Therefore, if a patient has no known allergies, it would be safe to administer vancomycin.
Choice D rationale
While it’s true that the dosage of the antibiotic should be within the safe range, the specific dosage of vancomycin for the patient isn’t provided in the question. Therefore, we cannot definitively say that this condition is met based on the information given.
Choice F rationale
Although vancomycin can be administered via a peripheral IV in a large vein, it’s important to note that vancomycin has a low pH and may cause venous irritation and tissue damage in cases of extravasation. Therefore, while it’s possible to administer vancomycin this way, it’s not necessarily an indicator of safety.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["D","E","F"]
Explanation
Choice A rationale
While it’s important to honor commitments, it’s also crucial to recognize when the caregiving role becomes too stressful or burdensome. Insisting on keeping a promise despite significant stress can lead to caregiver burnout.
Choice B rationale
This statement is not accurate. Moving a loved one into a care facility is sometimes the best decision for both the caregiver and the care recipient. It does not reflect a lack of love, but rather a recognition of the need for professional help.
Choice C rationale
This statement is not accurate. Caring for an adult, especially one with health issues, can be more challenging than raising a child in many ways.
Choice D rationale
Involving the care recipient in the decision-making process can help maintain their autonomy and dignity. It can also make the caregiving process more manageable.
Choice E rationale
It’s normal to have mixed feelings about a loved one for whom you’re providing care. Acknowledging these feelings can be an important step in managing caregiver stress.
Choice F rationale
This statement is not accurate. Setting boundaries is an important part of self-care and can help prevent caregiver burnout.
Choice G rationale
This statement is not accurate. Setting boundaries is an important part of self-care and can help prevent caregiver burnout.
Correct Answer is A
Explanation
Choice A rationale
Hyperventilation leads to a decrease in the amount of carbon dioxide (CO2) in the blood. This causes the pH of the blood to increase, resulting in respiratory alkalosis.
Choice B rationale
Respiratory acidosis is caused by a buildup of CO2 in the blood, typically due to hypoventilation (under-breathing). This is not consistent with the patient’s symptoms of hyperventilation.
Choice C rationale
Metabolic alkalosis is typically caused by a significant loss of acid from the body, such as from prolonged vomiting. This is not consistent with the patient’s symptoms.
Choice D rationale
Metabolic acidosis is typically caused by an increase in acid production within the body or a loss of bicarbonate from the body, such as in diabetic ketoacidosis or kidney disease. This is not consistent with the patient’s symptoms.
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