Correct Answer: C

Rationale: The correct answer is 'hospitalized.' Elderly individuals are at a higher risk of falls, especially when they are in new environments like hospitals due to unfamiliarity with the surroundings, medications, and potential mobility challenges. Being in a hospital can disrupt their usual routines and increase the risk of falls. Choice A ('in their 80s') is not as directly related to the increased risk of falls in a hospital environment. Choice B ('living at home') is a common setting for the elderly but does not address the specific risk associated with being hospitalized. Choice D ('living on only Social Security income') is unrelated to the risk of falls based on the environment.

Correct Answer: D

Rationale: A nasopharyngeal airway is measured from the tip of the nose to the earlobe. This measurement ensures that the airway is of the correct length to reach the nasopharynx without being too long or too short. Choices A, B, and C are incorrect as they do not provide the appropriate measurement for selecting the correct size of a nasopharyngeal airway. The distance from the corner of the mouth to the tragus of the ear (Choice A) is used to measure for an oropharyngeal airway, not a nasopharyngeal airway. Similarly, the other choices (B and C) do not correlate with the correct measurement of a nasopharyngeal airway.

Correct Answer: D

Rationale: The correct instruction for a client about to undergo pelvic ultrasonography is to 'Drink plenty of water.' A full bladder is required to serve as a landmark to define pelvic organs during the procedure. It is important to ensure the bladder is adequately filled. 'Urinate prior to the test' (Choice A) would not be appropriate as a full bladder is needed for better visualization. 'Have someone drive you home' (Choice B) is unnecessary as no sedation is given during the procedure, so the client can drive home on their own. 'Do not drink after midnight' (Choice C) is unrelated and not necessary for a pelvic ultrasonography examination.

Correct Answer: C

Rationale: The correct answer is 'hospitalized.' Elderly individuals are at a higher risk of falls, especially when they are in new environments like hospitals due to unfamiliarity with the surroundings, medications, and potential mobility challenges. Being in a hospital can disrupt their usual routines and increase the risk of falls. Choice A ('in their 80s') is not as directly related to the increased risk of falls in a hospital environment. Choice B ('living at home') is a common setting for the elderly but does not address the specific risk associated with being hospitalized. Choice D ('living on only Social Security income') is unrelated to the risk of falls based on the environment.

Correct Answer: A

Rationale: Isolation techniques are used to prevent or limit the spread of infection. Special handling of articles and linens soiled by any body fluid is essential. Linens should be placed in impervious bags before being removed from the client's bedside to prevent exposure of personnel and contamination of the environment. Double-bagging is required if the outside of the bag becomes contaminated. This practice ensures that potentially infectious materials are properly contained and disposed of. Choices B, C, and D are incorrect because the focus in this scenario is on proper handling and disposal of soiled linens to prevent the spread of infection, not on serving meals, psychological effects of isolation, or the use of paper trays and plastic utensils.