An older adult client with symptoms of osteoarthritis asks the nurse which form of exercise would be most beneficial. Which is the best response by the nurse?

Choice A reason: Potassium 4.7 mEq/L (4.70 mmol/L) is within the normal reference range of 3.5 to 5 mEq/L (3.5 to 5 mmol/L). Potassium is an electrolyte that helps regulate the balance of fluids and acids in the body, as well as the function of nerves and muscles. A high potassium level (hyperkalemia) can cause muscle weakness, irregular heartbeat, and cardiac arrest. A low potassium level (hypokalemia) can cause muscle cramps, fatigue, and arrhythmias.

Choice B reason: Magnesium 2.1 mEq/L (0.86 mmol/L) is within the normal reference range of 1.3 to 2.1 mEq/L (0.65 to 1.05 mmol/L). Magnesium is an electrolyte that helps regulate the activity of enzymes, muscles, and nerves, as well as the balance of calcium and potassium in the body. A high magnesium level (hypermagnesemia) can cause nausea, vomiting, flushing, muscle weakness, and respiratory depression. A low magnesium level (hypomagnesemia) can cause muscle twitching, tremors, seizures, and cardiac arrhythmias.

Choice C reason: Calcium 6.5 mg/dL (1.63 mmol/L) is below the normal reference range of 9 to 10.5 mg/dL (2.3 to 2.6 mmol/L). Calcium is an electrolyte that helps regulate the function of muscles, nerves, bones, and blood clotting. A high calcium level (hypercalcemia) can cause nausea, vomiting, constipation, confusion, kidney stones, and bone pain. A low calcium level (hypocalcemia) can cause muscle spasms, cramps, tingling, numbness, and stridor (a high-pitched sound when breathing). **This is a critical value that should be immediately reported to the healthcare provider**, as it can indicate a serious condition such as acute pancreatitis, sepsis, or massive blood transfusion.

Choice D reason: Sodium 135 mEq/L (135 mmol/L) is slightly below the normal reference range of 136 to 145 mEq/L (136 to 145 mmol/L). Sodium is an electrolyte that helps regulate the balance of fluids and acids in the body, as well as the function of nerves and muscles. A high sodium level (hypernatremia) can cause thirst, dry mouth, confusion, seizures, and coma. A low sodium level (hyponatremia) can cause headache, nausea, vomiting, fatigue, muscle weakness, and confusion.

- Choice A: Occupational therapist. This is correct because an occupational therapist can help the client with activities of daily living (ADLs) such as dressing, grooming, eating, and toileting. The client may have difficulty performing these tasks due to the facial droop and weakness caused by the stroke.

- Choice B: Speech therapist. This is correct because a speech therapist can help the client with communication and swallowing problems. The client has garbled speech, which indicates a possible aphasia or dysarthria. The client may also have dysphagia, which is difficulty swallowing, due to the impaired coordination of the muscles involved in swallowing.

- Choice C: Case manager. This is correct because a case manager can coordinate the client's care and discharge planning. The case manager can arrange for referrals, home health services, equipment, and follow-up appointments as needed. The case manager can also provide education and support to the client and family.

- Choice D: Physical therapist. This is correct because a physical therapist can help the client with mobility and balance issues. The client may have hemiparesis or hemiplegia, which is weakness or paralysis of one side of the body. The physical therapist can assist the client with exercises, gait training, and assistive devices to improve the client's functional status.

- Choice E: Chief nursing officer. This is incorrect because a chief nursing officer is not directly involved in the client's recovery. A chief nursing officer is a senior-level executive who oversees the nursing staff and operations of a health care organization. A chief nursing officer may have a role in quality improvement, policy development, and strategic planning, but not in individual client care.

- Choice F: Pharmacy technician. This is incorrect because a pharmacy technician is not directly involved in the client's recovery. A pharmacy technician is a health care professional who assists pharmacists with dispensing medications and other tasks. A pharmacy technician may have a role in preparing, labeling, and delivering medications, but not in providing therapy or education to the client.

- Choice G: Respiratory therapist. This is incorrect because a respiratory therapist is not directly involved in the client's recovery. A respiratory therapist is a health care professional who provides respiratory care to patients with breathing problems. A respiratory therapist may have a role in administering oxygen, nebulizers, ventilators, and other respiratory treatments, but not in addressing the client's stroke-related impairments.

- Choice H: Medical assistant. This is incorrect because a medical assistant is not directly involved in the client's recovery. A medical assistant is a health care professional who performs administrative and clinical tasks in a medical office or clinic. A medical assistant may have a role in scheduling appointments, taking vital signs, drawing blood, and performing basic laboratory tests, but not in providing rehabilitation or education to the client.