• Aneroid and digital manometers may require periodic calibration.
  • Use a larger cuff on obese or heavily muscled subjects.
  • Use a smaller cuff for pediatric patients.
  • For pediatric patients, lower blood pressure may indicate the presence of hypertension.
  • Don’t place the cuff over clothing.
  • Flex and support the patient’s arm.
  • In some patients, the Korotkoff sounds will disappear as the systolic pressure is bled down. After an interval, the Korotkoff sounds reappear. This interval is referred to as the “auscultatory gap.” This pathophysiologic occurrence can lead to a marked underestimation of systolic pressure if the cuff pressure is not elevated enough. For this reason, the rapid inflation of the blood pressure cuff to 180mmHg was recommended above. The “auscultatory gap” is felt to be associated with carotid atherosclerosis and a decrease in arterial compliance in patients with increased blood pressure.


  • For pediatric patients, use an appropriate table that uses age, sex, and height to interpret blood pressure findings. 


How To Dispose of Needles, Lancets, and Blood Strips Properly

Improper disposal of lancets, insulin syringes, infusion set cannulas, and other medical sharps can cause needlestick injuries, especially for garbage collectors. Please throw your used sharps away safely. Keep in mind that anything sharp should not be simply thrown in the trash.

Use a sharps container for all sharp objects like lancets and needles.  Use a red biohazard bag for any items that could have bodily fluid on them.  Always use universal precautions such as gloves.  

General Guidelines for Sharps Disposal

  • Use a sharps box if one is available. 

  • Remember never to re-cap your syringes before you dispose of them.

  • If you do not have a regular sharps box, use a hard (puncture-proof) non-clear container for disposing of used clipped or un-clipped syringes and lancets.

  • If you choose to clip the syringes, use a device that traps the clipped points in a puncture-proof compartment.


Safety Precautions

  • Do not drop your used syringes or lancets into the regular trash.

  • Do not cut off syringe needles with scissors or break off the needles. The needle could break off as you are cutting it and could hurt you or someone else.

  • Do not use clear plastic bottles for syringe disposal. Children of drug users may see the syringes and try to open the bottle.

  • Do not put plastic bottles filled with syringes/lancets in recycling bins.