A client has been taking a drug (Drug A) that is highly metabolized by the cytochrome P-450 system. He has been on this medication for 6 months. At this time, he is started on a second medication (Drug B) that is an inducer of the cytochrome P-450 system. You should monitor this client for:

Correct Answer: C

Rationale: When a client is taking a drug (Drug A) metabolized by the cytochrome P-450 system and is then started on another drug (Drug B) that induces this system, the metabolism of Drug A is increased. This results in decreased therapeutic effects of Drug A as it is broken down more rapidly. Monitoring is required to address potential reduced efficacy. The therapeutic effect of Drug A is diminished, not enhanced. Inducing the cytochrome P-450 system does not directly increase the adverse effects of Drug B. Although Drug B is an inducer, its therapeutic effects are not decreased as it is not metabolized faster.

Correct Answer: C

Rationale: A stab wound to the chest might result in lung collapse and mediastinal shift that, if untreated, could lead to death. Treatment of an obstructed airway or a chest wound is a higher priority than hemorrhage. The principle of ABC (airway, breathing, and circulation) prioritizes care decisions. In this scenario, the stab wound to the chest poses the highest risk to the client's life as it can lead to severe complications such as lung collapse and mediastinal shift. Addressing this injury promptly is crucial to prevent further harm or potential fatality. Open leg fracture, open head injury, and traumatic amputation of a thumb, while serious, do not pose an immediate life-threatening risk compared to a stab wound to the chest.

Correct Answer: D

Rationale: When a client presents with suspected genitourinary trauma and visible blood at the urethral meatus, obtaining a voided urine specimen for urinalysis is an appropriate intervention. This helps assess for any urinary tract injuries or abnormalities without further traumatizing the area. Insertion of a Foley catheter (Choice A) should be avoided as it can worsen the existing trauma. Performing an in-and-out catheter specimen (Choice B) involves unnecessary manipulation and can increase the risk of complications. Ordering a urinalysis by the physician (Choice D) may delay the assessment compared to obtaining a direct voided urine specimen.

Correct Answer: C

Rationale: The correct answer is C. Trauma in any client, living or dead, has potential legal and/or forensic implications. Clothing, patterns of stains, and debris are sources of potential evidence and must be preserved. Nurses must be aware of state and local regulations that require mandatory reporting of cases of suspected child and elder abuse, accidental death, and suicide. Each Emergency Department has written policies and procedures to assist nurses and other health care providers in making appropriate reports. Physical evidence is real, tangible, or latent matter that can be visualized, measured, or analyzed. Emergency Department nurses can be called on to collect evidence. Health care facilities have policies governing the collection of forensic evidence. The chain of evidence custody must be followed to ensure the integrity and credibility of the evidence. The chain of evidence custody is the pathway that evidence follows from the time it is collected until it has served its purpose in the legal investigation of an incident. Choices A, B, and D are incorrect because they do not address the crucial aspect of preserving potential evidence with legal implications that may be present on the clothing of a trauma victim.

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.