A nurse is collecting data on a client who has urinary retention. Which of the following findings should the nurse expect?

Choice A: Iron supplements are used to treat iron-deficiency anemia, but they can also reduce the motility of the gastrointestinal tract and make the stools harder and drier¹². This can lead to difficulty in passing stools and increased straining.
Choice B: Magnesium-containing antacids are used to treat heartburn and acid reflux, but they can also have a laxative effect and cause diarrhea¹³. This is because magnesium draws water into the intestines and stimulates bowel movements.
Choice C: Antibiotics are used to treat bacterial infections, but they can also disrupt the normal flora of the gut and cause diarrhea¹⁴. This is because antibiotics can kill the beneficial bacteria that help digest food and prevent the overgrowth of harmful bacteria that cause inflammation and infection.
Choice D: Anticholinergics/antispasmodics are used to treat overactive bladder, irritable bowel syndrome, and other conditions that involve muscle spasms in the gut, but they can also slow down the movement of the intestines and relax the muscles that help push the stools out¹ . This can lead to reduced frequency and difficulty in defecation.
Choice E: Opioid narcotics are used to treat moderate to severe pain, but they can also block the signals from the brain to the gut and inhibit the contraction of the intestinal muscles¹ . This can lead to decreased bowel activity and accumulation of hard and dry stools.

The correct answer is B. Decreased deep tendon reflexes. Hyperkalemia can lead to muscle weakness and decreased reflexes, which is a common manifestation in patients with chronic kidney disease.

Choice A reason:

Wheezing is typically associated with respiratory conditions such as asthma or chronic obstructive pulmonary disease (COPD), not hyperkalemia. Hyperkalemia affects the muscular function and cardiac conduction rather than causing respiratory symptoms.

Choice B reason:

Decreased deep tendon reflexes occur due to the effect of hyperkalemia on the neuromuscular junction and muscle excitability. In hyperkalemia, the resting membrane potential of muscle cells is less negative, which makes them less responsive to stimuli.

Choice C reason:

Hypoactive bowel sounds are generally associated with gastrointestinal issues and are not a direct manifestation of hyperkalemia. While severe hyperkalemia can affect smooth muscle function, it is not typically characterized by changes in bowel sounds.

Choice D reason:

Cerebral edema is not a manifestation of hyperkalemia. It is usually caused by traumatic brain injury, infections, or other neurological conditions. Hyperkalemia primarily affects muscular function and cardiac conduction.

Normal serum potassium levels range from about 3.5 to 5.0 mmol/L. Hyperkalemia is defined as serum potassium levels above 5.0 mmol/L.