Correct Answer: D

Rationale: The correct answer is D. Calf pain on dorsiflexion following knee surgery may indicate a complication such as deep vein thrombosis, which is a serious condition requiring medical attention. Reporting this finding promptly is crucial to prevent further complications. Choices A, B, and C are within normal range for a client post knee surgery and do not typically indicate immediate complications that require urgent reporting.

Correct Answer: A

Rationale: The correct answer is A. Taking the pulse before taking digoxin is crucial as it helps monitor the heart rate, as digoxin can cause bradycardia as a side effect. Option B is incorrect because digoxin should be taken on an empty stomach to enhance absorption. Option C is incorrect because digoxin should be held and the healthcare provider should be contacted if the heart rate is less than 60/min. Option D is incorrect because digoxin should not be taken with food due to decreased absorption.

Correct Answer: C

Rationale: The correct answer is C. When a client understands the teaching about iron supplements, they should know that black, tarry stools are a normal side effect. This indicates that the medication is being absorbed and working effectively. Choices A and B are incorrect because iron supplements should not be taken with milk or orange juice, as these can interfere with the absorption of iron. Choice D is also incorrect because iron supplements are usually best absorbed on an empty stomach, so taking them before bedtime may not be ideal.

Correct Answer: D

Rationale: A blood glucose level of 45 mg/dL is below the normal range for a newborn and indicates hypoglycemia, which can lead to serious complications if left untreated. Therefore, this finding should be reported to the provider immediately. Choices A, B, and C are within normal ranges for a newborn and do not require immediate reporting. A heart rate of 140/min, a bulging anterior fontanel, and a respiratory rate of 50/min are all common findings in a newborn and do not raise immediate concerns.

Correct Answer: B

Rationale: The correct answer is B: Ataxia. Ataxia, which refers to uncoordinated movements, is a common adverse effect of phenytoin, a medication used to manage seizure disorders. Bradycardia (Choice A) is not typically associated with phenytoin; instead, it may cause tachycardia (Choice C) as a side effect. Insomnia (Choice D) is not a common adverse effect of phenytoin.