A person is taken to the emergency room at Baptist Hospital vomiting , bleeding and with severe diarrhea . He complained of headache , shortness of breath and body aches . The doctor quickly checked the composition of the patient's blood plasma , the light - yellow liquid that cames salts and enzymes , and determined he was severely dehydrated Thus causing a severe loss of fluid in the blood and an increase of blood cell concentration The doctor prescribed intravenous liquids ( IV ) and rest Based on the patient's symptoms and doctor's initial prognosis , how does dehydration affect a person's blood flow and blood pressure ? SC 912 L 14.36 The patient's blood viscosity would increase , causing blood flow to increase and blood pressure to decrease The patient's blood viscosity would decrease causing the blood flow to decrease and the blood pressure to also decrease The patient's blood viscosity would increase , causing the blood flow to decrease and the blood pressure to increase The patient's blood viscosity would decrease , causing the blood flow and blood pressure to remain at a stable rhythm