Nursing Elites

1. The nurse is teaching a nursing student about the minimal effective concentration (MEC) of antibiotics. Which statement by the nursing student indicates understanding of this concept?

• A. A serum drug level greater than the MEC ensures that the drug is bacteriostatic.
• B. A serum drug level greater than the MEC broadens the spectrum of the drug.
• C. A serum drug level greater than the MEC helps eradicate bacterial infections.
• D. A serum drug level greater than the MEC increases the therapeutic index.

Correct answer: C

Rationale: The MEC is the minimum amount of drug needed to halt the growth of a microorganism. A level greater than the MEC helps eradicate infections. Drugs at or above the MEC are usually bactericidal, not bacteriostatic. Therefore, choice A is incorrect. Broadening the spectrum of a drug refers to its range of activity against different microorganisms, which is not directly related to MEC. Thus, choice B is incorrect. Increasing the therapeutic index involves maximizing the effectiveness of a drug while minimizing its toxicity, which is not specifically related to MEC. Therefore, choice D is also incorrect.

2. A confused client with pneumonia is admitted with an indwelling catheter in place. During interdisciplinary rounds the following day, which question should the nurse ask the primary health care provider?

• A. Do you want daily weights on this client?
• B. Will the client be able to return home?
• C. Can we discontinue the indwelling catheter?
• D. Should we get another chest x-ray today?

Correct answer: C

Rationale: An indwelling catheter dramatically increases the risks of urinary tract infection and urosepsis. Nursing staff should ensure that catheters are left in place only as long as they are medically needed. The nurse should inquire about removing the catheter. All other questions might be appropriate, but because of client safety, this question takes priority.

3. The nurse is caring for a 70-kg patient who is receiving gentamicin (Garamycin) 85 mg 4 times daily. The patient reports experiencing ringing in the ears. The nurse will contact the provider to discuss

• A. decreasing the dose to 50 mg QID.
• B. giving the dose 3 times daily.
• C. obtaining a serum drug level.
• D. ordering a hearing test.

Correct answer: C

Rationale: When a patient receiving gentamicin (Garamycin) reports experiencing ringing in the ears, it is crucial to consider the possibility of ototoxicity. Ototoxicity is a known adverse effect of aminoglycosides. The appropriate action for the nurse in this situation is to contact the provider to discuss obtaining a serum drug level. This is important to assess the drug concentration in the patient's blood, which can help determine if the ringing in the ears is related to the medication. Decreasing the dose or changing the dosing frequency without assessing the serum drug level may not address the underlying issue and could potentially lead to suboptimal treatment. Ordering a hearing test may be necessary at a later stage if the serum drug level indicates a concern. Therefore, option C, obtaining a serum drug level, is the most appropriate action to take in this scenario.

4. What is the most common cause of coronary artery disease?

• A. Atherosclerosis.
• B. Hyperlipidemia.
• C. Diabetes.
• D. Smoking.

Correct answer: A

Rationale: The correct answer is Atherosclerosis. It is the primary cause of coronary artery disease, as it involves the buildup of plaque in the arteries, restricting blood flow to the heart. Hyperlipidemia (choice B) contributes to atherosclerosis by increasing cholesterol levels in the blood but is not the direct cause of coronary artery disease. Diabetes (choice C) can accelerate atherosclerosis due to high blood sugar levels, but it is not the most common cause. Smoking (choice D) is a significant risk factor for developing coronary artery disease but is not the primary cause.

5. A nurse is suctioning a client through a tracheostomy tube. During the procedure, the client begins to cough, and the nurse hears a wheeze. The nurse tries to remove the suction catheter from the client’s trachea but is unable to do so. What should the nurse do first?

• A. Call a code
• B. Contact the physician
• C. Administer a bronchodilator
• D. Disconnect the suction source from the catheter

Correct answer: D

Rationale: Inability to remove a suction catheter is a critical situation that may indicate the presence of bronchospasm and bronchoconstriction, as evidenced by the client coughing and wheezing. The immediate action for the nurse is to disconnect the suction source from the catheter, allowing the catheter to remain in the trachea. By doing so, the nurse can then connect the oxygen source to the catheter to provide essential oxygenation to the client. Contacting the physician is necessary to notify them of the situation and to obtain further orders, typically for an inhaled bronchodilator to relieve the bronchospasm. Administering a bronchodilator without physician's orders is not within the nurse's scope of practice and should not be the first action. Calling a code would be excessive at this point and should only be done if the client's condition deteriorates and immediate resuscitation is required.

Similar Questions