
    In a hospital's patient monitoring system, you need to identify the patient who is at highest risk for readmission based on their risk assessment scores. Given a list of patient data pairs containing patient IDs and their corresponding readmission risk scores, write a function that returns the ID of the patient with the lowest risk score. The lower the risk score, the more urgent the need for intervention.
    

    
from operator import itemgetter

def index_minimum(test_list):
    """
    In a hospital's patient monitoring system, you need to identify the patient who is at highest risk for readmission based on their risk assessment scores. Given a list of patient data pairs containing patient IDs and their corresponding readmission risk scores, write a function that returns the ID of the patient with the lowest risk score. The lower the risk score, the more urgent the need for intervention.
    

    """
from operator import itemgetter

def index_minimum(test_list):
    """
    In a hospital's patient monitoring system, you need to identify the patient who is at highest risk for readmission based on their risk assessment scores. Given a list of patient data pairs containing patient IDs and their corresponding readmission risk scores, write a function that returns the ID of the patient with the lowest risk score. The lower the risk score, the more urgent the need for intervention.
    

    """
    res = min(test_list, key=itemgetter(1))[0]
    return res