Correct Answer: D

Rationale: Anemia can lead to an increased respiratory rate. In anemia, there are decreased levels of hemoglobin in red blood cells, which are responsible for carrying oxygen to the body's tissues. To compensate for the reduced oxygen-carrying capacity, the body increases the respiratory rate to bring in more oxygen. Stooped posture (Choice A) is not directly related to an increased respiratory rate. Narcotic analgesics (Choice B) are more likely to cause a decreased respiratory rate due to their central nervous system depressant effects. Injury to the brain stem (Choice C) can affect respiratory function but may not necessarily lead to an increased respiratory rate.

Correct Answer: B

Rationale: When drawing a blood specimen from a central line, the healthcare professional should disconnect any infusions that are currently running and that could contaminate the specimen. It is important to use a minimum size of a 10 cc syringe when using a central line to avoid placing too much pressure on the catheter. Cleaning the cap with alcohol and attaching a 5 cc syringe is not appropriate as a larger syringe size should be used for this procedure. Drawing 5 cc of a blood sample to discard and flushing with saline after the sample are correct steps in the process of drawing a blood specimen from a central line.

Correct Answer: C

Rationale: Type 1 diabetes is an autoimmune condition where the immune system attacks and destroys the beta cells in the pancreas, leading to a lack of insulin production. Insulin is essential for regulating blood glucose levels and enabling cells to use glucose for energy. Understanding that type 1 diabetes results from the destruction of beta cells helps patients comprehend the need for insulin replacement therapy. Choices A and B are incorrect as type 1 diabetes is not primarily caused by diet or exercise habits. Choice D is incorrect because type 1 diabetes is not about the body's cells rejecting insulin but rather the lack of insulin production due to beta cell destruction.

Correct Answer: B

Rationale: : An exchange transfusion is a method of controlling high bilirubin levels in infants when traditional phototherapy is unsuccessful. During an exchange transfusion, the physician removes 5-10 cc of blood and then replaces it with donor blood. The parents of this infant should know that the procedure is always performed by a physician and will take approximately 1 ½ hours to complete.

Correct Answer: A

Rationale: Ketamine is an anesthetic that induces dissociation and lack of awareness in a client. It can be used before general anesthesia or during short procedures for sedation. Ketamine may lead to side effects such as delirium, hallucinations, hypertension, and respiratory depression. Therefore, the nurse should monitor the client for delirium, as it is a potential side effect associated with ketamine use. Muscle rigidity, hypotension, and pinpoint rash are not typically attributed to ketamine administration and are less likely to occur in this scenario.