The MD orders 1 L of LR to infuse at 150 mL/h for a post-op patient.

The tubing drop factor is 10gtts/mL. Calculate the flow rate in drops per minute.

(ROUND TO WHOLE NUMBER, LABEL CORRECTLY TO RECEIVE CREDIT)

Choice A rationale

Pulling the lobe up and back is the correct technique for administering ear drops to adults and children older than three years of age. This maneuver straightens the ear canal in older individuals due to the anatomical development and orientation of the Eustachian tube and external auditory meatus.

Choice B rationale

Instructing parents to hold the child upright for 10 minutes is an appropriate post-administration instruction to facilitate medication absorption and prevent spillage. However, this action is not part of the physical technique for correctly preparing the ear canal for drop instillation.

Choice C rationale

For children under 3 years old, the external auditory canal is straighter and angled differently than in adults. Pulling the pinna down and back straightens this shorter, more upwardly curved canal, allowing the medication to flow more effectively and reach the tympanic membrane for optimal absorption.

Choice D rationale

Massaging the tragus after instillation helps to distribute the medication throughout the ear canal and facilitate its passage deeper. However, massaging the tragus before administering the drops does not contribute to straightening the ear canal and is not a preparatory step for instillation.

Choice A rationale

Orientation to person, place, and time is a fundamental component of cognitive assessment, indicating intact neurological function. Knowing one's full name demonstrates personal orientation. Recognizing the hospital and its location signifies place orientation. Providing the correct month and year, even without the exact day, suggests a reasonable grasp of temporal orientation, reflecting adequate higher cortical processing.

Choice B rationale

The inability to state one's location and an incorrect year indicate significant deficits in both place and time orientation. This suggests impaired cognitive function, potentially due to delirium, dementia, or other neurological issues affecting memory and executive functions. Such a response would warrant further comprehensive cognitive evaluation.

Choice C rationale

While knowing one's name indicates personal orientation, confusion about the date points to a deficit in time orientation. This partial disorientation suggests some level of cognitive impairment, necessitating further assessment to determine the underlying cause and extent of the confusion.

Choice D rationale

Hesitation regarding location and complete inability to state the date demonstrate significant disorientation to both place and time. This pattern of response is indicative of impaired cognitive function and necessitates a thorough neurological and cognitive workup to identify potential etiologies.