Ntprobnp required? Ntprobnp be done now?

70 yrs, early cirrhosis. Hypertension, prediabetes. Asymptomatic. Took Telmiride H earlier on which BP was controlled, but due to cirrhosis switched to carvedilol 3.125 twice a day. BP now remains systolic 135 and 75-80 diastolic but fluctuates. Takes istamet n thyronorm. Has back and leg pain. Osteoarthritis. *Echo ECG lipids are normal. Took Ecosprin AV preventive since Covid (dr advised), discontinued recently. *Has purple discoloration in ankles without swollen veins and mild pedal edema Had earlier frequent mild coughing and bp remained low and dr suggested NTprobnp in view of coughing.  But now coughing is less to none. PFT normal. No other symptoms or shortnessofbreath. Should NTPROBNP be done now ?