foundations of nursing test bank

Correct Answer: A

Rationale: Rationale: 1. Insulin needs change during pregnancy due to hormonal changes. 2. During the first trimester, insulin needs may decrease. 3. During the second and third trimesters, insulin needs increase. 4. Postpartum, insulin needs return to pre-pregnancy levels. Therefore, choice A is correct as insulin needs vary based on gestational stage. Choices B, C, and D are incorrect because insulin needs do not uniformly increase or decrease throughout pregnancy or due to fetal insulin production.

Correct Answer: B

Rationale: The correct answer is B: Count and inspect each perineal pad that the patient uses. This method directly measures postoperative blood loss and allows for accurate monitoring. It provides quantitative data to assess the severity of hemorrhage. A: Having the patient void and have bowel movements using a commode rather than toilet does not directly measure blood loss and may not provide accurate monitoring. C: Swabbing the patient's perineum for the presence of blood is not as accurate as directly counting and inspecting perineal pads. D: Leaving the patient's perineum open to air does not provide a method for quantifying blood loss and may not be as reliable as inspecting perineal pads.

Correct Answer: A

Rationale: Rationale: 1. Insulin needs change during pregnancy due to hormonal changes. 2. During the first trimester, insulin needs may decrease. 3. During the second and third trimesters, insulin needs increase. 4. Postpartum, insulin needs return to pre-pregnancy levels. Therefore, choice A is correct as insulin needs vary based on gestational stage. Choices B, C, and D are incorrect because insulin needs do not uniformly increase or decrease throughout pregnancy or due to fetal insulin production.

Correct Answer: C

Rationale: Step 1: After mastoid surgery, patients may experience pain and dizziness, hence addressing the safe use of analgesics and antivertiginous agents is crucial for symptom management. Step 2: Analgesics help in managing post-operative pain, while antivertiginous agents help control dizziness, reducing the risk of falls. Step 3: Educating the patient on safe use ensures proper pain and symptom management, preventing complications. Step 4: Other choices are incorrect as they do not directly address immediate post-operative care needs such as pain and dizziness management.

Correct Answer: A

Rationale: The correct answer is A: Ewald tube. This tube is used for gastric lavage due to its large diameter and open end which allows for effective suction of gastric contents. The Ewald tube is specifically designed for gastric lavage and is ideal for removing toxins from the stomach. Summary of why the other choices are incorrect: B: Dobhoff tube is a small-bore feeding tube, not suitable for gastric lavage. C: Miller-Abbott tube is used for intestinal decompression, not gastric lavage. D: Sengstaken-Blakemore tube is used for esophageal varices, not gastric lavage.