as near as possible to measuring the blood pressure in an environment that is close to this, is why it is useful to take the measurement at home.

A. WHO blood pressure classifications

Standards for assessment of high or low blood pressure without regard to age, have been established by the World Health Organization (WHO), as shown in the chart.

* Figure No.1

B. Variations in blood pressure

Individual blood pressures vary greatly both on a daily and a seasonal basis. These variations are even more pronounced in hyper tense patients. Normally the blood pressure rises while at work and is at its lowest during sleeping period.

(Hyper tense: means a person who has high blood pressure symptom.)

The graph below illustrated the variations in blood pressure over a whole day with measurement taken every ¿ve minutes.

* Figure No.2

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Citizen ch-17 manual WHO blood pressure classifications, Variations in blood pressure

ch-17 specifications

The Citizen CH-17 is a marvel of modern aviation, designed to push the boundaries of efficiency, reliability, and functionality in the competitive field of helicopters. It represents a culmination of advanced engineering, innovative technologies, and a keen understanding of operational needs in various environments.

One of the standout features of the CH-17 is its multi-role capability. This helicopter is engineered for a variety of missions, ranging from search and rescue operations to medical evacuations, law enforcement support, and troop transport. The versatility of the CH-17 is complemented by its spacious cabin, designed to accommodate both personnel and equipment, making it a valuable asset in diverse operational scenarios.

Incorporating state-of-the-art technologies, the CH-17 boasts a powerful turbine engine that provides exceptional performance, even in challenging conditions. Its aerodynamic design ensures improved fuel efficiency, thereby extending its operational range and reducing logistic costs. This is particularly crucial for missions that require sustained flight or long-distance travel to remote areas.

The avionics suite of the CH-17 is another notable aspect, integrating cutting-edge navigation and communication systems to enhance situational awareness. The cockpit features advanced displays that provide pilots with real-time data, enabling informed decision-making and improved mission execution. Additionally, the incorporation of fly-by-wire technology enhances the helicopter's handling, allowing for greater precision and responsiveness during flight.

Safety is paramount in the design of the CH-17. It includes multiple redundancies in critical systems to ensure reliability, coupled with advanced safety features such as weather radar and enhanced visibility options. The airframe is constructed from lightweight, durable materials, providing strength while minimizing weight, a critical aspect for flight performance and fuel economy.

Moreover, the CH-17's rotor system is optimized for low noise and vibration, significantly enhancing passenger comfort during flight. This is particularly important for medical missions where patient well-being is paramount. The helicopter's maintenance-friendly design also contributes to reduced downtime, with easily accessible components aiding in routine checks and repairs.

In summary, the Citizen CH-17 stands out with its impressive multi-role capabilities, advanced propulsion and avionics technologies, commitment to safety, and focus on operational efficiency. This helicopter is a testament to modern engineering, well-suited for a variety of demanding missions, thereby solidifying its place as a reliable workhorse in the skies.