Correct Answer: D

Rationale: Calcium gluconate is the antidote for magnesium sulfate toxicity. In cases of magnesium sulfate toxicity, calcium gluconate is administered to counteract the effects of magnesium and restore calcium levels. Magnesium toxicity can lead to symptoms such as muscle weakness, respiratory depression, and cardiac arrhythmias. Calcium gluconate helps in reversing these effects by competing with magnesium and preventing its adverse manifestations. Nifedipine is a calcium channel blocker used for conditions like hypertension and angina, not for magnesium toxicity. Pyridoxine is vitamin B6 and is not the antidote for magnesium toxicity. Ferrous sulfate is an iron supplement and is not used to treat magnesium sulfate toxicity.

Correct Answer: A

Rationale: The correct answer is A because using a water-soluble lubricant with condoms can help prevent breakage and ensure effectiveness in preventing pregnancy and sexually transmitted infections (STIs). This statement demonstrates the client's understanding of the importance of proper condom use to maximize protection. Choice B is incorrect because a diaphragm should be left in place for at least 6 hours after intercourse to ensure contraceptive effectiveness. Choice C is incorrect as oral contraceptives are known to improve acne in some cases. Choice D is incorrect because a contraceptive patch is typically replaced weekly, not monthly.

Correct Answer: C

Rationale: In this scenario, the symptoms of continued nausea, vomiting, scant prune-colored discharge, and a fundal height larger than expected at 4 months of gestation suggest a possible hydatidiform mole. Hyperemesis gravidarum (choice A) typically presents with severe nausea, vomiting, weight loss, and electrolyte imbalances. Threatened abortion (choice B) is characterized by vaginal bleeding with or without cramping but does not typically present with prune-colored discharge. Preterm labor (choice D) manifests with regular uterine contractions leading to cervical changes and can occur later in pregnancy.

Correct Answer: A

Rationale: Dark green leafy vegetables are rich in calcium, making them an excellent alternative source for individuals who dislike or cannot consume dairy products. Calcium is crucial for bone health, particularly during pregnancy, to support the developing fetus and maintain the mother's bone strength. Therefore, recommending dark green leafy vegetables ensures the client receives an adequate intake of calcium despite not liking milk. Choice B, deep red or orange vegetables, are not typically high in calcium. Choice C, white bread and rice, are not significant sources of calcium. Choice D, meat, poultry, and fish, are good sources of protein but do not provide as much calcium as dark green leafy vegetables.

Correct Answer: D

Rationale: Signs of magnesium sulfate toxicity include respirations less than 12/min, urinary output less than 25 mL/hr, and decreased level of consciousness. These signs indicate potential overdose of magnesium sulfate and require immediate attention to prevent further complications. Reporting these signs promptly is crucial to ensure the client's safety and well-being. Choice D, 'All of the above,' is the correct answer as all the listed findings are indicative of magnesium sulfate toxicity. Choices A, B, and C individually represent different signs of toxicity, making them incorrect on their own. Therefore, the nurse should be vigilant in identifying and reporting all these signs to prevent adverse outcomes.