A nurse is assessing a client who has pneumonia. Which of the following manifestations should the nurse expect?

Choice A rationale:
The combination of widened QRS, frequent premature ventricular contractions (PVCs), and bradycardia (heart rate of 55/min) on telemetry monitoring suggests hyperkalemia. Elevated potassium levels in the blood can cause delayed repolarization of cardiac cells, leading to widened QRS complexes and PVCs. Bradycardia is another common manifestation of hyperkalemia.
Choice B rationale:
Hypocalcemia, characterized by low calcium levels in the blood, can lead to cardiac arrhythmias, but it typically presents with a prolonged QT interval rather than widened QRS complexes and PVCs.
Choice C rationale:
Hyperglycemia, which is high blood glucose levels, does not directly affect the electrocardiogram (ECG) parameters like QRS width or heart rate. It may have systemic effects, but it is not responsible for the ECG changes described in the scenario.
Choice D rationale:
Hypophosphatemia, or low levels of phosphate in the blood, can cause muscle weakness and may have systemic effects, but it is not associated with the specific ECG changes seen in hyperkalemia, such as widened QRS complexes and PVCs.

Choice A rationale:

The nurse should not instruct the older adult client with osteoporosis to increase high-impact activities. Osteoporosis is a condition characterized by decreased bone density and strength, making high-impact activities potentially harmful as they could increase the risk of fractures.

Choice B rationale:

The nurse should not advise the client to consume a low-protein diet. Adequate protein intake is essential for maintaining muscle mass and overall musculoskeletal health, especially in older adults who may be at risk of muscle wasting.

Choice C rationale:

The nurse should not encourage the client to maintain a BMI of 30 to 35. A BMI within this range is considered obese and can put additional stress on the musculoskeletal system, increasing the risk of joint problems and other health issues.

Choice D rationale:

Including fiber in the diet is a correct instruction for promoting musculoskeletal health. Fiber-rich foods can help maintain bowel regularity and prevent constipation, which is important for overall comfort and mobility in older adults with osteoporosis.