A nurse is providing dietary teaching for a client who is at 28 weeks of gestation and has phenylketonuria (PKU). Which of the following foods should the client avoid?

A. Whole-wheat pasta, green salad, and diet cola: While this meal is low in fat and suitable for hypertension, it lacks a clear protein source. Additionally, diet cola contains caffeine and artificial sweeteners, which some clients may choose to avoid due to personal or health preferences.
B. Broiled chicken, grilled potatoes, and lemonade: This option is appropriate for a client with hypertension and complies with Islamic dietary laws. Chicken is a halal protein, and the meal is low in sodium and saturated fat. Lemonade is a non-caffeinated beverage that aligns with religious and health considerations.
C. Roast beef, brown rice, and coffee: Roast beef is permissible if it is halal, but this cannot be assumed unless specified. Coffee contains caffeine, which some individuals with hypertension may need to limit. The meal also lacks details on fat and sodium content.
D. Grilled pork loin, steamed vegetables, and water: Pork is strictly prohibited (haram) in Islamic dietary laws. Although the vegetables and water are appropriate, the inclusion of pork makes this meal unacceptable for a practicing Muslim.

A. Muscle weakness: Potassium is essential for normal neuromuscular function, and a low serum potassium level disrupts muscle cell excitability and contractility. As a result, clients may present with generalized weakness, particularly in the lower extremities, and may have difficulty with mobility or respiration if the weakness progresses.
B. Hyperreflexia: Hyperreflexia is more commonly associated with elevated calcium or magnesium imbalances rather than decreased potassium. Hypokalemia typically causes reduced neuromuscular excitability, which would result in diminished or absent reflexes rather than increased reflex activity. Therefore, hyperreflexia is not an expected finding in a client with low potassium.
C. Chvostek's sign: Chvostek’s sign is associated with hypocalcemia, not hypokalemia. It is elicited by tapping the facial nerve, resulting in twitching of the facial muscles. This sign indicates increased neuromuscular excitability due to low calcium levels, which is unrelated to potassium regulation. It is not expected in cases of decreased potassium.
D. Seizures: Seizures are more commonly linked with abnormalities in sodium or calcium levels, particularly hyponatremia or severe hypocalcemia. While severe hypokalemia can lead to cardiac arrhythmias and muscle paralysis, it is not typically associated with seizures. Therefore, seizures are not a standard finding in clients with hypokalemia.