Final answer:
To minimize the sensation of tickling during abdominal palpation and promote relaxation in a child, a nurse should apply firm, steady pressure during the palpation.
Step-by-step explanation:
The measure most likely to minimize the sensation of tickling during superficial palpation of the abdomen and promote relaxation in a child is B) Apply firm, steady pressure during palpation. This method reduces the ticklish response by providing a more secure and less stimulating sensation than light touch. Introducing a cold stethoscope might desensitize the skin but can also be uncomfortable and cause additional distress.
Explaining the procedure in detail can help with understanding, but it may not be directly effective in reducing ticklishness. Asking the child to cough can disrupt the process of relaxation. Therefore, the application of firm, steady pressure is the most appropriate method for a professional clinician to promote relaxation and minimize tickling during an examination.