
Case summary:
An astronaut, Captain Fallowell had been aboard for 8 months at the international space station He left in the middle of his speech complainingabout the increased heart rate and abnormal blood pressure while standing. Sometimes, he also faces blackouts and dizziness while standing, although his reflexes were normal with no any sign or symptom of head trauma.
Characters in the case:
Captain Fallowell.
Adequate information:
According to the conversation of the two nurses, one of them said, the patient was fit and was just advised for the exercise of 2 hours. The other nurse told about the complications of the patient, that the tissue fluid and blood shifted into the head, and he got skinny legs.
To determine:
The effect of increased circulation of blood in the head and torso on the SNS (sympathetic nervous system), HR (heart rate), and PNS (parasympathetic nervous system).
Given information:
Captain Fallowell’s heart rate was high that is 112 beats per minute during standing and 85 beats per minute while he was lying. Also, the BP (blood pressure) was 94/52 mmHg when he was standing and on lying it was 116/66 mmHg.

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Chapter 19 Solutions
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