How can light therapy be effective?

Correct Answer: D

Rationale: Light therapy can be effective in treating problems associated with sleep patterns, stress, moods, jaundice in newborns, and seasonal affective disorders. While light therapy may have other potential benefits, such as improving mood or helping with seasonal affective disorders, the main focus and effectiveness of light therapy are commonly linked to regulating sleep patterns. Therefore, the correct answer is 'Working with sleep patterns.' Choices A, B, and C are incorrect as light therapy is not primarily used for overcoming weight problems, helping with allergies, or solely as an alternative medical treatment.

Correct Answer: C

Rationale: When a client has neutropenia, they have low white blood cell levels, which increases the risk of infections due to a weakened immune system. Wearing a mask when out of the room is crucial to reduce the risk of exposure to respiratory infections. Avoiding fresh fruits and vegetables is also necessary as they may contain harmful pathogens. Having a private room helps minimize exposure to pathogens and ensures that visitors are carefully screened for any signs of illness. Routine hand washing is essential to prevent the spread of infections in the healthcare setting, but the most direct measure to protect the client from potential infections is wearing a mask when out of the room.

Correct Answer: B

Rationale: Object permanence occurs when the infant learns that something or someone still exists even though they might not be able to see it or them. This typically develops between 9 and 10 months of age. The correct answer, 'The infant looks at the floor to find a toy that he was playing with and dropped,' demonstrates object permanence as the infant understands that the toy still exists even though it is temporarily out of sight. Choices A and C do not directly relate to object permanence as the behaviors described do not necessarily indicate an understanding of objects existing when out of sight. Choice D is incorrect as participating in a game of patty-cake does not involve demonstrating object permanence. Peek-a-boo is a more suitable example of a game that demonstrates object permanence, as the infant continues to look for the hidden face, understanding that it still exists even though temporarily unseen.

Correct Answer: D

Rationale: Signs of impaired breathing in infants and children typically include nasal flaring, grunting, and seesaw breathing. Nasal flaring is the widening of the nostrils during breathing to help with air intake, grunting is a sound made during expiration to keep the airway open, and seesaw breathing is an abnormal pattern where the chest moves in while the abdomen moves out. Quivering lips are not a typical sign of impaired breathing in infants and children, making it the correct answer. Nasal flaring, grunting, and seesaw breathing are all signs indicating the need for immediate medical attention due to potential respiratory distress.

Correct Answer: C

Rationale: Pernicious anemia is least likely to be associated with an increased potential for bleeding. Pernicious anemia results from vitamin B12 deficiency due to a lack of intrinsic factor, leading to faulty absorption from the gastrointestinal tract. While pernicious anemia can lead to other health issues, bleeding tendencies are not a primary concern. Metastatic liver cancer (choice A) can cause liver dysfunction leading to decreased synthesis of clotting factors, increasing the risk of bleeding. Gram-negative septicemia (choice B) can lead to disseminated intravascular coagulation (DIC) causing excessive bleeding. Iron-deficiency anemia (choice D) can result in microcytic hypochromic red blood cells, which can impair oxygen transport and lead to tissue hypoxia, but it is not directly associated with a significant potential for bleeding.

Correct Answer: C

Rationale: In this scenario, the nurse is observing bruises on a child's body that are located in areas not commonly associated with accidental injuries. Given the concerning nature of the bruising pattern and the inconsistent history provided by the parents, the nurse should suspect possible child abuse and take appropriate action by notifying the case manager in the clinic. The safety and well-being of the child should always be the top priority. Counseling for the family, warm baths, or recommending range of motion (ROM) exercises are not appropriate actions in this situation and may not address the underlying issue of potential child abuse.

Correct Answer: C

Rationale: To promote relief of muscle pain, spasms, and tension, the nurse should consider applying heat, cold, pressure, or vibration to the painful area. These interventions can help alleviate pain associated with muscle tension, pain, or spasms. Choice A is incorrect because encouraging the client to continue their activities as usual may exacerbate the pain. Choice B is incorrect as immobilizing the client may not address the underlying issue and could potentially lead to further complications. Choice D is also incorrect because while pain medication can be used, it is not the first-line treatment for muscle pain, spasms, and tension.

Correct Answer: D

Rationale: Elderly persons with pernicious anemia, a condition characterized by vitamin B12 deficiency due to lack of intrinsic factor, should be informed about the potential side effects of B12 injections. Diarrhea is a known transient side effect of B12 injections, along with pain and burning at the injection site, and peripheral vascular thrombosis. Increasing dietary intake of B12-rich foods would not be sufficient due to the malabsorption issue in pernicious anemia. Follow-up is essential in managing pernicious anemia, so instructing patients they do not need to return for follow-up is incorrect. While oral B12 may be a suitable option for some cases, it is not the preferred choice for pernicious anemia where malabsorption is the primary issue.

Correct Answer: B

Rationale: In the context of DIC, effective Heparin therapy aims to halt the process of intravascular coagulation. One of the indicators of a positive response to Heparin therapy is an increase in fibrinogen levels. Heparin interferes with the conversion of fibrinogen to fibrin by thrombin. This interruption helps increase the availability of fibrinogen. While the platelet count may increase due to improved clotting, the primary focus of Heparin therapy is on fibrinogen. Fibrin split products are expected to decrease as the coagulation cascade is controlled. Although decreased bleeding is an ultimate goal, the immediate effect of Heparin is not directly on bleeding but on the coagulation process.