Correct Answer: D

Rationale: Clay-colored stools and dark urine are classic signs of liver dysfunction, indicating bile flow obstruction commonly seen in liver cirrhosis. This finding is a significant complication requiring immediate medical evaluation. Yellowing of the skin and eyes (jaundice) is a common symptom of liver dysfunction but is not specific to complications. Spider angiomas and ascites with peripheral edema are also associated with liver cirrhosis, but they are not indicative of immediate complications as clay-colored stools and dark urine are.

Correct Answer: D

Rationale: The correct answer is D because a recent illness, such as a cold, can trigger a vaso-occlusive crisis in sickle cell disease. This crisis is often precipitated by infections or other illnesses that cause a systemic inflammatory response, leading to vaso-occlusion. Choices A, B, and C do not directly relate to the etiology of a vaso-occlusive crisis in sickle cell disease, making them incorrect.

Correct Answer: B

Rationale: Assessing for signs of infection at the insertion site is the priority when caring for a client with a chest tube. Infection at the insertion site can lead to serious complications such as empyema or sepsis. Monitoring respiratory status is essential but assessing for infection takes precedence to prevent immediate harm. Assessing for subcutaneous emphysema is important but not the priority unless it compromises respiratory function. Checking the chest tube for kinks or occlusions is crucial for proper drainage but is not the priority when infection is a concern.

Correct Answer: D

Rationale: After the insertion of an enteral feeding tube, the most accurate method for verifying its placement is by aspirating gastric contents. This method ensures that the tube is correctly positioned in the stomach. Abdominal x-ray can provide additional confirmation but is not as immediate or practical. Auscultation and flushing the tube with saline are not as reliable as aspirating gastric contents for verifying proper placement of an enteral feeding tube.

Correct Answer: B

Rationale: An allergy to shrimp is a contraindication for a myelogram because the contrast dye used in the procedure contains iodine, which can trigger allergic reactions in individuals allergic to shellfish. Choices A, C, and D are not contraindications for a myelogram. Inability to lie still for an extended period, claustrophobia, or a previous headache after a spinal tap are concerns that can be managed during the procedure but do not necessarily prevent the test from being performed.