Correct Answer: D

Rationale: The correct answer is to administer the medication (Choice D) since the lithium level of 0.8 mEq/L falls within the therapeutic range of 0.6-1.2 mEq/L. Withholding the next dose (Choice A) or increasing the dosage (Choice B) is not necessary as the current level is appropriate. Discontinuing the medication (Choice C) is not warranted based on the given lithium level. It is crucial to maintain therapeutic levels to ensure the medication's effectiveness without causing toxicity.

Correct Answer: A

Rationale: The correct answer is to obtain the specimen immediately upon the client waking up. Collecting sputum early in the morning provides the best sample for tuberculosis testing. Option B is incorrect because waiting a day can decrease the accuracy of the specimen. Option C is incorrect as it does not specify the optimal timing for specimen collection. Option D is incorrect as sterile gloves should be worn for infection control but do not specifically relate to the timing of specimen collection.

Correct Answer: D

Rationale: Ensuring that the client's identification band matches the number on the blood unit is crucial for correct identification. This action helps prevent errors by confirming that the blood product is indeed intended for the specific client. Matching the client's blood type with type and cross-match specimens (Choice A) is important for compatibility but does not directly verify the client's identity. Confirming the provider's prescription (Choice B) is relevant but does not ensure the correct identification of the client. Asking the client to state their blood type and confirm the date of their last blood donation (Choice C) relies on the client's memory and verbal confirmation, which may not be accurate or reliable for identification purposes.

Correct Answer: C

Rationale: The correct action for the nurse to take is to check the client's creatinine level before administering vancomycin. Vancomycin is known to be nephrotoxic, so assessing the client's renal function before administering the medication is crucial to prevent further kidney damage. Administering the medication over 15 minutes (Choice A) is not the priority in this scenario as renal function assessment takes precedence. Monitoring urine output (Choice B) is important for assessing renal function but checking creatinine level directly provides more accurate information. Assessing for allergies to antibiotics (Choice D) is also important but not as essential as checking the creatinine level due to the nephrotoxic nature of vancomycin.

Correct Answer: D

Rationale: The correct answer is to administer the medication (Choice D) since the lithium level of 0.8 mEq/L falls within the therapeutic range of 0.6-1.2 mEq/L. Withholding the next dose (Choice A) or increasing the dosage (Choice B) is not necessary as the current level is appropriate. Discontinuing the medication (Choice C) is not warranted based on the given lithium level. It is crucial to maintain therapeutic levels to ensure the medication's effectiveness without causing toxicity.