Nokea
Which part of the central nervous system can affect the rate of heart contractions?
- A. Left temporal lobe
- B. Pons
- C. Hypothalamus
- D. Thalamus
- E. Medulla oblongata
- F. Occiput
Correct Answer: C,E
Rationale: The hypothalamus regulates autonomic functions, including heart rate, via the autonomic nervous system. The medulla oblongata contains the cardiac control center, directly influencing heart rate.
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What characteristic(s) of the pulse should you always assess?
- A. Length of each beat
- B. Strength
- C. Rate
- D. Depth
- E. Rhythm of the beats
Correct Answer: B,C,E
Rationale: When assessing a pulse, you should evaluate its rate (beats per minute), strength (amplitude), and rhythm (regularity) to determine cardiovascular status.
Which of the following assessments provide data regarding the quality of circulation to a patient's extremities?
- A. Oral temperature
- B. Strength of pedal dorsalis pulse
- C. Skin temperature of hands and feet
- D. Pulse rate
- E. Blood pressure
- F. Color of nailbeds
- G. Capillary refill time
Correct Answer: B,C,F,G
Rationale: Strength of pedal dorsalis pulse, skin temperature, nailbed color, and capillary refill time directly assess peripheral circulation by evaluating blood flow and tissue perfusion.
To assess the blood pressure on the upper arm, you should place the stethoscope over which artery? Located at which site?
- A. Brachial artery; antecubital fossa
- B. Radial artery; wrist
- C. Femoral artery; groin
- D. Popliteal artery; knee
Correct Answer: A
Rationale: The brachial artery, located in the antecubital fossa, is used for blood pressure measurement as it provides accurate readings of systemic pressure.
Antipyretics are medications given for hypertension.
- A. TRUE
- B. FALSE
Correct Answer: B
Rationale: False. Antipyretics are medications used to reduce fever, not hypertension.
What is thermogenesis?
- A. Heat production in the body
- B. Heat loss through sweating
- C. Regulation of body temperature
- D. Cooling of the body
Correct Answer: A
Rationale: Thermogenesis is the process of heat production in the body, often through metabolic processes like shivering or brown fat activation, to maintain body temperature.