Correct Answer: A

Rationale: During early pregnancy, nausea and vomiting in the morning are common symptoms. Eating crackers or plain toast before getting out of bed can help manage morning nausea by stabilizing blood sugar levels. This simple and easily digestible snack can alleviate symptoms by providing some sustenance to the stomach before fully waking up and moving around. Choices B, C, and D are incorrect. Waking up during the night to eat a snack may disrupt sleep patterns, skipping breakfast can worsen symptoms by allowing the stomach to remain empty for longer periods, and eating a large evening meal may exacerbate morning nausea due to increased stomach contents.

Correct Answer: A

Rationale: During early pregnancy, nausea and vomiting in the morning are common symptoms. Eating crackers or plain toast before getting out of bed can help manage morning nausea by stabilizing blood sugar levels. This simple and easily digestible snack can alleviate symptoms by providing some sustenance to the stomach before fully waking up and moving around. Choices B, C, and D are incorrect. Waking up during the night to eat a snack may disrupt sleep patterns, skipping breakfast can worsen symptoms by allowing the stomach to remain empty for longer periods, and eating a large evening meal may exacerbate morning nausea due to increased stomach contents.

Correct Answer: B

Rationale: Corrected Question: When caring for a client receiving nifedipine for prevention of preterm labor, the nurse should monitor the client for which of the following manifestations? Rationale: Nifedipine, a calcium channel blocker, causes vasodilation, potentially leading to a decrease in blood pressure and side effects such as dizziness. Monitoring for dizziness is essential to ensure the client's safety and well-being during treatment. Choices A, C, and D are incorrect as they are not typically associated with nifedipine use for preventing preterm labor. Blood-tinged sputum may indicate other conditions like pulmonary issues, pallor could suggest anemia or circulatory problems, and somnolence is not a common side effect of nifedipine.

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: D

Rationale: The correct answer is D, 'All of the Above.' Magnesium sulfate should not be used in cases of fetal distress, vaginal bleeding, or cervical dilation greater than 6 cm. These conditions can be exacerbated by the administration of magnesium sulfate, leading to further complications for the client. Choice A, fetal distress, is a contraindication because magnesium sulfate can further affect the fetal heart rate. Choice B, cervical dilation greater than 6 cm, is a contraindication as magnesium sulfate can potentially suppress uterine contractions, prolonging labor. Choice C, vaginal bleeding, is a contraindication as magnesium sulfate can further increase bleeding tendencies.