Medical Surgical Assignment Exam HESI

Correct Answer: C

Rationale: The correct answer is C. In osteoarthritis, the breakdown of cartilage in the joints leads to chondrocyte injury, which results in the destruction of joint cartilage and the production of osteophytes. This process causes joint inflammation and pain. Choice A is incorrect because osteoarthritis primarily involves the articular cartilage rather than the synovial membrane. Choice B is incorrect as it describes the degeneration of cartilage but does not explain the specific pathophysiological process contributing to pain in osteoarthritis. Choice D is incorrect as the formation of uric acid crystals is characteristic of gout, not osteoarthritis.

Correct Answer: B

Rationale: Taking allopurinol every day helps to prevent gout flare-ups by reducing uric acid levels.

Correct Answer: A

Rationale: The correct answer is A: 'Has everyone at home already had varicella?' Herpes zoster (shingles) is caused by the reactivation of the varicella-zoster virus, the same virus that causes chickenpox. By knowing if others at home had varicella (chickenpox), the nurse can assess the risk of transmission and provide appropriate guidance. Choice B is incorrect because antifungal creams are not effective for herpes zoster, which is a viral infection. Choice C is irrelevant to herpes zoster as it pertains to sharing personal items that may transmit head lice or certain skin infections. Choice D is also unrelated as it focuses on dry patches, not typical manifestations of herpes zoster which presents as a painful rash.

Correct Answer: C

Rationale: The correct answer is C: The absence of parasympathetic ganglion cells in a portion of the colon is a causative factor of Hirschsprung disease. This absence leads to the inability of the affected segment of the colon to relax, causing a functional obstruction. Choices A, B, and D are incorrect. Frequent evacuation of solids, liquid, and gases, excessive peristaltic movement, and one portion of the bowel telescoping into another are not causative factors of Hirschsprung disease.

Correct Answer: C

Rationale: The correct answer is C, Normal sinus rhythm. Normal sinus rhythm is characterized by a regular rhythm, normal P waves, and a consistent PR interval. In this context, the strip likely shows a normal ECG pattern with these characteristics, indicating a healthy heart rhythm. Choices A, B, and D are incorrect. Atrial fibrillation would show an irregularly irregular rhythm with no discernible P waves. Ventricular tachycardia would display wide QRS complexes and a fast heart rate. Second-degree heart block would exhibit intermittent dropped QRS complexes.