Correct Answer: A

Rationale: To calculate the drip rate, you need to convert the time from minutes to hours. The formula is (Volume to be infused / Time for infusion in minutes) x (60 minutes / 1 hour). Substituting the values, (50 mL / 30 min) x (60 min / 1 hr) = 100 mL/hr. Therefore, the appropriate drip rate is 100 mL/hr. Choices B, C, and D are incorrect as they do not match the calculated drip rate. Option A, 100 mL/hr, is the correct drip rate for administering Ceftriaxone 750mg in 50mL D5W over 30 minutes.

Correct Answer: A

Rationale: When using a Wood light during a skin examination, the room should be darkened to enhance the visibility of fluorescence. The Wood light emits long-wavelength ultraviolet light, highlighting certain skin conditions. Darkening the room aids in better visualization. Obtaining informed consent is a crucial aspect of healthcare but not directly related to using a Wood light. Obtaining a scalpel and a slide is unnecessary for a noninvasive Wood light examination. Anesthetizing the skin area is not required as the procedure is painless and noninvasive.

Correct Answer: D

Rationale: Adventitious breath sounds are abnormal sounds that are not normally heard in the lungs. These sounds are added sounds superimposed on the breath sounds. They are caused by air colliding with secretions in the tracheobronchial passageways or when previously deflated airways pop open. Hollow sounds heard over the trachea and larynx are normal bronchial (tracheal) breath sounds, not adventitious. Rustling sounds heard over the peripheral lung fields are normal vesicular breath sounds, not adventitious. Therefore, the correct answer is that adventitious breath sounds are abnormal sounds that should not be heard in the lungs.

Correct Answer: A

Rationale: To calculate the drip rate, you need to convert the time from minutes to hours. The formula is (Volume to be infused / Time for infusion in minutes) x (60 minutes / 1 hour). Substituting the values, (50 mL / 30 min) x (60 min / 1 hr) = 100 mL/hr. Therefore, the appropriate drip rate is 100 mL/hr. Choices B, C, and D are incorrect as they do not match the calculated drip rate. Option A, 100 mL/hr, is the correct drip rate for administering Ceftriaxone 750mg in 50mL D5W over 30 minutes.

Correct Answer: A

Rationale: To calculate the amount of drug to be administered, divide the ordered dose by the concentration of the medication in the vial. In this case, 0.45 mg ÷ 3 mg/mL = 0.15 mL. Therefore, the correct answer is 0.15 mL. Choice B (6.6 mL) is incorrect as it does not result from the correct calculation. Choice C (1.5 mL) is incorrect as it is not the result of dividing the ordered dose by the concentration. Choice D (0.65 mL) is incorrect as it is not the accurate calculation based on the provided information.