What is the measurement method of mercury sphygmomanometer?

Measurement method of mercury sphygmomanometer: insert a fine needle from the upper hole of mercury storage bottle and make a small hole to ensure the smooth upper hole; Clean or replace the mercury storage bottle; Clean and filter mercury. When the mercury sphygmomanometer has zero dislocation, mercury bubbles or intermittent faults, it should not be disassembled, so it should be stopped immediately and sent to a professional maintenance department for maintenance.

Mercury sphygmomanometer is widely used in clinic, with good reliability and low price. However, mercury sphygmomanometer needs to be calibrated regularly, and mercury is highly toxic.

Mercury sphygmomanometer should be calibrated once a year by turning on the switch of mercury sphygmomanometer. If the mercury is zero or the mercury switch is turned on and tilted gradually, the mercury sphygmomanometer will continuously reach 180mm mercury column, indicating that the mercury sphygmomanometer is standard. Otherwise, the mercury sphygmomanometer will fail.

When using mercury sphygmomanometer, you should pay attention to the following points:

1。 Straighten the hose to prevent knotting and winding, and keep the air duct unblocked.

2。 After opening the mercury tank, the mercury level should reach the zero line. If not, it must be repaired. This situation is due to the lack of mercury content, which will lead to inaccurate measurement results, stratification and even splashing of mercury.

Three. When the mercury content rises to a higher position, the inflation speed must be reduced to prevent mercury splashing due to some reasons.

Extended data:

1. Reduce physiological changes during blood pressure measurement. Blood pressure measurement should be carried out in a quiet and warm room to ensure that patients do not eat, smoke, drink coffee or have a full bladder in a short time, and explain the methods of blood pressure measurement to patients to alleviate their anxiety.

2. When the patient is seated, his back should lean on the back of the chair, his legs should not be crossed, and he should be flat enough. Whether the patient is sitting or supine, the midpoint of the upper limb should be at the heart level, and rest for 5 minutes after posing.

Baidu encyclopedia-mercury sphygmomanometer