A male client reports to the on-call nurse that he took tadalafil 10 mg by mouth two hours ago and his skin now feels flushed. He reports a history of stable angina, but denies experiencing any current or recent chest pain. Which action should the nurse take?

Choice A: Observing insertion site is an essential assessment for a client who has a suprapubic catheter. The insertion site is located in the lower abdomen, where urine drains from an opening in the bladder through a catheter into a drainage bag. The nurse should inspect the site for signs of infection, inflammation, bleeding, or leakage. The nurse should also clean the site with soap and water and apply a sterile dressing as needed.

Choice B: Palpating flank area is not a relevant assessment for a client who has a suprapubic catheter. The flank area is located on the sides of the back, where the kidneys are located. Palpating the flank area can detect tenderness or pain that may indicate kidney infection or stones, but it does not provide information about the suprapubic catheter or its function.

Choice C: Measuring abdominal girth is not a relevant assessment for a client who has a suprapubic catheter. The abdominal girth is the circumference of the abdomen at the level of the umbilicus. Measuring abdominal girth can detect changes in fluid balance, ascites, or bowel obstruction, but it does not provide information about the suprapubic catheter or its function.

Choice D: Assessing perineal area is not a relevant assessment for a client who has a suprapubic catheter. The perineal area is located between the anus and the genitals. Assessing perineal area can detect signs of infection, irritation, or injury in the genital or anal regions, but it does not provide information about the suprapubic catheter or its function.

Choice A: Advising the client to place one nitroglycerin tablet under his tongue as a precaution is a dangerous action for the nurse, as this can cause severe hypotension and cardiovascular collapse due to the interaction between tadalafil and nitroglycerin. This is a contraindicated choice.

Choice B: Telling the client to have someone bring him to an emergency department immediately is an unnecessary action for the nurse, as there is no evidence of any serious adverse reaction or complication from tadalafil. This is an overreaction choice.

Choice C: Instructing the client to increase his intake of oral fluids until the skin flushing is relieved is not an appropriate action for the nurse, as this does not address the cause of the flushing, which is vasodilation due to tadalafil. This is a distractor choice.

Choice D: Reassuring the client that skin flushing is a common side effect of the medication is an appropriate action for the nurse, as this can calm the client and educate him about the expected effects of tadalafil. Therefore, this is the correct choice.