Correct Answer: A

Rationale: Oatmeal cookies are the best snack suggestion for a preschooler with constipation needing to increase fiber intake. Oatmeal is high in fiber, which helps relieve constipation. Cheese sticks, yogurt, and apple slices are not as high in fiber content as oatmeal and may not be as effective in addressing the constipation issue in this scenario.

Correct Answer: A

Rationale: Administering insulin is the most crucial intervention in managing diabetic ketoacidosis. Insulin helps reduce blood glucose levels and correct metabolic acidosis, which are the primary issues in DKA. Monitoring urine output (Choice B) is important but not as critical as administering insulin. Assessing the client's level of consciousness (Choice C) is essential but does not directly address the underlying cause of DKA. Obtaining an arterial blood gas sample (Choice D) can provide valuable information but is not as urgent as administering insulin to address the immediate metabolic imbalance.

Correct Answer: A

Rationale: The correct answer is A. An overdose of thyroid preparation generally manifests symptoms of an agitated state such as tremors, palpitations, shortness of breath, tachycardia, increased appetite, agitation, sweating, and diarrhea. Palpitations and shortness of breath are signs of excessive thyroid medication. Choices B, C, and D are incorrect symptoms for a dosage that is too high. Bradycardia and constipation, lethargy and lack of appetite, muscle cramping and dry, flushed skin are more indicative of hypothyroidism or an insufficient dosage of levothyroxine.

Correct Answer: A

Rationale: The correct answer is A, Magnesium hydroxide (Maalox). In clients with chronic kidney disease (CKD), magnesium can accumulate to toxic levels as the kidneys are unable to excrete it efficiently. This can lead to hypermagnesemia, causing serious and potentially life-threatening complications. Birth control pills (choice B) are metabolized mainly by the liver and do not pose a significant threat to clients with CKD. Cough syrup containing codeine (choice C) should be used cautiously in CKD due to the risk of respiratory depression but does not pose as great a threat as magnesium accumulation. Cold medication containing alcohol (choice D) should be avoided in CKD but does not present the same level of danger as magnesium toxicity.

Correct Answer: B

Rationale: Confusion and altered mental status are concerning in a client with cirrhosis as they may indicate hepatic encephalopathy, a serious complication that requires immediate intervention. Increased abdominal girth can be seen in ascites, yellowing of the skin is due to jaundice, and peripheral edema is associated with fluid retention in cirrhosis, but confusion and altered mental status are more closely linked to hepatic encephalopathy, which can progress rapidly and needs urgent attention.