Which defense mechanism would the nurse conclude a female client with obsessive-compulsive disorder, who washes her hands more than 20 times a day, is using to ease anxiety?

Correct Answer: A

Rationale: The correct answer is 'Undoing.' Undoing is a defense mechanism where the individual tries to negate a previous act to relieve guilt or anxiety. In this case, the client washing her hands excessively is trying to 'undo' perceived contamination or guilt associated with not washing. Projection (choice B) involves attributing one's own unacceptable thoughts or impulses to others, which is not demonstrated in this scenario. Introjection (choice C) is the process of internalizing beliefs or values of others, which is also not applicable in this context. Displacement (choice D) involves redirecting emotions from one target to another, which does not align with the client's behavior of handwashing as a response to anxiety in this case.

Correct Answer: D

Rationale: The census classification system categorizes individuals based on racial and ethnic descriptions. Utilizing this data helps in identifying health disparities and assessing how the health care needs of ethnic populations are being addressed. Option A is incorrect because the primary focus is on analyzing healthcare needs met, not providing care. Option B is incorrect as the census does not encompass every single racial and ethnic group in the United States. Option C is incorrect as the census is not designed to investigate the reasons behind disparities, but rather to quantify and analyze them.

Correct Answer: D

Rationale: The correct answer is to explain the reason for the time-out before and after disciplining the child. This approach reinforces the child's association of the time-out with the undesirable behavior, helping the child learn to control those behaviors. Sending a child to their bedroom may lead to negative associations with bedtime or be ineffective if the child enjoys spending time in their bedroom. Time-out should ideally be limited to 1 minute per year of age, so a time-out for a 4-year-old should be limited to 4 minutes. Placing a child in a dark closet can create fear and damage the child's trust in their parents as a source of safety, making it an inappropriate and harmful approach. Even if this method seems effective in the short term, the potential long-term consequences outweigh any immediate benefits.

Correct Answer: C

Rationale: Amenorrhea (cessation of menses) is associated with anorexia nervosa in females due to endocrine imbalances resulting from depleted fat stores. Galactorrhea is a milky discharge from the nipples unrelated to normal breast milk production. Gynecomastia is swelling of breast tissue in males. Premenstrual dysphoric disorder occurs about 1 week before menses and includes mood swings, depression, fatigue, bloating, overeating, and difficulty focusing, resolving when menstruation starts. In the context of anorexia nervosa, the primary concern is the disruption of the menstrual cycle due to low body weight, leading to amenorrhea.

Correct Answer: B

Rationale: When assessing an older adult, the nurse should be aware that with aging, systolic blood pressure tends to increase, resulting in widened pulse pressure. While in many older individuals both systolic and diastolic pressures increase, the pulse rate and body temperature typically do not increase with aging. Therefore, the correct answer is widened pulse pressure. Choices A, C, and D are incorrect because pulse rate does not necessarily increase with age, body temperature generally remains stable, and diastolic blood pressure may increase instead of decreasing in many older adults.