Correct Answer: A

Rationale: The correct answer is vitamin B12 deficiency. Long-term use of Metformin can lead to vitamin B12 deficiency, and a vegan diet is low in vitamin B12. Symptoms of vitamin B12 deficiency include anemia, fatigue, confusion, and mood changes. Chronic hypoglycemia is unlikely in a client with Type 2 Diabetes who has been taking Metformin as it typically causes hyperglycemia. Vitamin D deficiency usually presents with symptoms related to bones and muscles, not confusion and mood changes. Increased tolerance to Metformin does not explain the client's new symptoms, which are more indicative of a nutritional deficiency like vitamin B12.

Correct Answer: A

Rationale: The penile skin typically appears wrinkled and hairless, without lesions, during a normal examination. Also, the scrotal skin naturally has a wrinkled appearance known as rugae. It is common for the left half of the scrotum to be positioned lower than the right, indicating normal asymmetry. Given these normal variations, the nurse should document the finding of wrinkled skin on the penis and scrotum. Checking for penile discharge or palpating for a mass in the scrotum is not indicated based on the presence of wrinkled skin, as this is a normal finding. Obtaining additional subjective data focusing on a scrotal abnormality is unnecessary since the wrinkled appearance is typical.

Correct Answer: A

Rationale: When working in a community pediatric health clinic, applying the principles of initiative is crucial when caring for preschool children. According to Erik Erikson's psychosocial theory, the developmental task for preschool children is initiative. Preschool children are in the stage where they are eager to initiate activities and carry out tasks. This stage is characterized by a balance between initiative and guilt. By encouraging children to explore and take the initiative in a supportive environment, healthcare providers can foster their sense of independence and creativity. The other choices are incorrect because: - Sensorimotor thought is a term associated with Jean Piaget's cognitive development theory, not Erikson's psychosocial theory. - Intimacy is a developmental task associated with young adults, not adolescents, in Erikson's theory. - Concrete operations is a term linked to Piaget's theory of cognitive development and is not a developmental task according to Erikson's psychosocial theory.

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: D

Rationale: To best listen to breath sounds, the nurse should have the client sit, leaning slightly forward, with arms resting comfortably across the lap. The client should be instructed to breathe through the mouth a little deeper than usual, but to stop if feeling dizzy. The nurse should hold the flat diaphragm end piece of the stethoscope firmly against the client's chest wall. It is crucial to listen for at least one full respiration in each location on the chest to assess breath sounds accurately. Side-to-side comparison is essential in breath sound assessment. Therefore, options A, B, and C are incorrect as they do not align with the correct procedure for listening to breath sounds.