Correct Answer: B

Rationale: The correct answer is B: Preschooler. Family customs have a significant impact on hygiene practices during childhood, especially in the early years. Preschoolers are at an age where they are learning and forming habits, and family customs play a crucial role in establishing routines such as bathing and brushing teeth. Adolescents, older adults, and adults are more likely to have established their own hygiene routines that may not be as heavily influenced by family customs as in early childhood. Therefore, the nurse is most likely providing care to a preschooler in this scenario.

Correct Answer: A

Rationale: The correct answer is A: Trying to increase independence. Toddlers around the age of 2 often exhibit behaviors like temper tantrums and saying 'no' as they are asserting their independence and autonomy. This behavior is a normal part of their developmental stage where they are starting to explore and assert their own preferences and desires. Choice B, developing a sense of trust, is more relevant to infants during the trust vs. mistrust stage. Choice C, establishing a new identity, is typically associated with adolescence and identity formation. Choice D, attempting to master a skill, is more indicative of a child trying to learn and develop new abilities rather than the behavior described in the scenario.

Correct Answer: C

Rationale: The correct answer is C: Friction. The amount of friction is crucial in effective hand hygiene to remove microorganisms. Rubbing hands together with friction helps to dislodge and remove dirt, oils, and microorganisms. While temperature and soap are important factors in hand hygiene, the mechanical action of friction plays a more significant role in physically removing contaminants. Time is also important in hand hygiene practice, but without adequate friction, the effectiveness of the process is compromised.

Correct Answer: C

Rationale: The most concerning assessment finding in a client with asthma is the use of accessory muscles. This indicates that the client is working harder to breathe, which could signify respiratory distress. Wheezing, choice A, is a common finding in asthma and indicates narrowed airways but may not necessarily imply immediate distress. Shortness of breath, choice B, is also common in asthma but may not be as concerning as the use of accessory muscles. Cough with sputum production, choice D, can occur in asthma exacerbations but may not be as critical as signs of increased work of breathing like the use of accessory muscles.

Correct Answer: C

Rationale: Calf swelling, redness, and tenderness are classic signs of thrombophlebitis. The swelling occurs due to the formation of a blood clot in the deep veins of the calf, leading to inflammation and potential obstruction of blood flow. Bladder distention (Choice A) is more indicative of urinary retention, decreased blood pressure (Choice B) can be seen in conditions like shock, and diminished bowel sounds (Choice D) may suggest gastrointestinal issues, none of which are directly related to thrombophlebitis.