A nurse is assessing a client with suspected meningitis.

Which of the following signs would be most indicative of meningitis?

Choice A rationale
Hypercalcemia is characterized by increased calcium levels in the blood, often due to increased absorption of calcium from the gut. However, in chronic kidney disease (CKD), the kidneys’ ability to activate vitamin D is impaired, leading to decreased calcium absorption from the gut, not increased. Therefore, hypercalcemia is not a typical sign of CKD1.
Choice B rationale
A positive Chvostek’s sign is indicative of hypocalcemia, which is a common symptom in CKD. The kidneys’ reduced ability to activate vitamin D leads to decreased calcium absorption from the gut, resulting in low calcium levels in the blood. This hypocalcemia can cause neuromuscular irritability, leading to a positive Chvostek’s sign.
Choice C rationale
Tetany is a condition characterized by muscle cramps and spasms, often due to hypocalcemia. In CKD, hypocalcemia occurs due to the kidneys’ inability to activate vitamin D, leading to decreased calcium absorption from the gut. This hypocalcemia can cause hyperexcitability of nerves and muscles, resulting in tetany.
Choice D rationale
Hyperphosphatemia is characterized by high phosphate levels in the blood. In CKD, the kidneys’ ability to excrete phosphate is impaired, leading to its accumulation in the blood. However, this is not directly related to the inability to absorb phosphate from the gut but rather the kidneys’ reduced excretion capacity.

Choice A rationale
Post-renal acute kidney injury (AKI) is caused by obstruction of urine flow, leading to decreased urine output, but it does not typically cause crackles in the lungs.
Choice B rationale
Diabetes insipidus (DI) is characterized by excessive urination and thirst due to a deficiency of antidiuretic hormone (ADH), but it does not cause crackles in the lungs.
Choice C rationale
Syndrome of inappropriate antidiuretic hormone (SIADH) involves excessive release of ADH, leading to water retention and hyponatremia, but it does not cause crackles in the lungs.
Choice D rationale
Congestive heart failure (CHF) can lead to fluid accumulation in the lungs (crackles) and decreased urine output due to poor cardiac function and renal perfusion.