Estimates of total blood volume and total body weight of a sperm whale (Physeter catodon)

1981 ◽  
Vol 59 (3) ◽  
pp. 567-570 ◽  
Author(s):  
R. B. Sleet ◽  
J. L. Sumich ◽  
L. J. Weber

A stranding of sperm whales (Physeter catodon) on the central Oregon coast enabled measurement of the total plasma volume of one female whale. The total blood volume was calculated to be about 20% of the total body weight based on the measured total plasma volume and hematocrit and the estimate of total body weight.

1987 ◽  
Vol 65 (7) ◽  
pp. 1866-1867 ◽  
Author(s):  
K. M. Keiver ◽  
M. Chandler ◽  
R. J. Frank ◽  
K. Ronald

Plasma volumes and haematocrits were determined in six hooded seals (Cystophora cristata) and blood volumes were estimated. Expressed on a total body weight basis, plasma volume was found to range from 39 to 109 mL∙kg−1 and blood volume from 93 to 222 mL∙kg−1. Logarithms of the values for plasma and blood volume varied directly with the total body weight of the seals.


1958 ◽  
Vol 196 (1) ◽  
pp. 188-192 ◽  
Author(s):  
Louise Wang

A method is described for the catheterization of the carotid of the rat which permits blood volume determinations to be made on unanesthetized animals. The cell volume (P32) and plasma volume (T-1824) were measured simultaneously on the day after catheterization. The average Fcells factor was 0.739 (S.D., 0.053) in 11 normal rats and 0.726 (S.D., 0.041) in 10 splenectomized rats. In 50 unanesthetized normal rats the plasma volume averaged 3.90 ml/100 gm body weight. The blood and cell volumes calculated by using the Fcells factor of 0.74 and the separately determined plasma trapping' factor of 0.95 averaged 5.93 ml/ 100 gm and 2.14 ml/100 gm, respectively. These values agree closely with those determined from the simultaneous measurement of cell and plasma volumes and also with the values obtained on 27 normal rats under ether.


1964 ◽  
Vol 207 (1) ◽  
pp. 223-227 ◽  
Author(s):  
N. A. Marcilese ◽  
R. M. Valsecchi ◽  
H. D. Figueiras ◽  
H. R. Camberos ◽  
J. E. Varela

Blood volumes of 51 horses of three different breeds were determined by means of radioisotopes Cr51 and Fe59. The mean values obtained in 34 determinations for 31 Thoroughbred English race horses are as follows: total blood volume, 10.31; plasma volume, 6.33; and red cell volume 3.98 liters/100 kg body weight for a hematocrit of 42.7%. The results for 6 saddle horses are: 7.75, 5.25, and 2.53, respectively, for a hematocrit of 37.3%. The results in 14 draft horses are: 6.14, 4.35, and 1.82 for a hematocrit of 33.5%. The differences observed in the blood volume values of the three breeds are statistically significant. In our opinion, these differences are due to their physiological qualities, according to the breed.


Blood ◽  
1977 ◽  
Vol 49 (2) ◽  
pp. 301-307 ◽  
Author(s):  
R Alexanian

Abstract The plasma volume, red cell volume, or both were measured in 170 normal, anemic, or polycythemic subjects. For anemic subjects without a serum protein abnormality or splenomegaly, the relationship between hematocrit and red cell volume was linear and predictable. In patients with a serum monoclonal globulin on electrophoresis, the plasma voluem was significantly increased for the hematocrit in 30%, and the total blood volume was increased in 45%. The frequency of an elevated plasma volume was higher in patients with a markedly increased level of monoclonal protein. Reductions of abnormal proteins with chemotherapy were associated with declines in plasma volume. For a specific concentration, the serum viscosity was highest in patients with IgM proteins and lowest in patients with IgG globulins. Marked elevations in viscosity were noted only in sera with macroglobulinemia or with more than 5 g/dl of IgG or IgA globulins.


2003 ◽  
Vol 13 (6) ◽  
pp. 544-550 ◽  
Author(s):  
Rilvani C. Gonçalves ◽  
Carlos Alberto Buschpigell ◽  
Antonio Augusto Lopes

In the Eisenmenger syndrome, indirect estimation of blood volumes may provide quite inaccurate information when seeking to define therapeutic strategies. With this in mind, we analyzed directly the red cell mass, plasma volume, and total blood volume in patients with pulmonary hypertension associated with congenital cardiac defects and erythrocytosis, comparing the results with the respective estimated volumes, and examining the changes induced by therapeutic hemodilution.Thus, we studied 17 patients with the Eisenmenger syndrome, aged from 15 to 53 years, in the basal condition, studying 12 of them both before and after hemodilution. We also investigated five individuals with minimal cardiac lesions, aged from 14 to 42 years, as controls. Red cell mass and plasma volumes were measured using [51 chromium]-sodium chromate and [131iodine]-albumin respectively. Hemodilution was planned so as to exchange 10% of the total blood volume, using 40,000 molecular weight dextran simultaneously to replace the removed volume. The mean values of the red cell mass, plasma volume and total blood volume as assessed by radionuclide techniques were 32%, 31% and 32% higher than the respective volumes as estimated using empirical mathematical formulas (p < 0.002). The measured total blood volume was also 19% higher in the patients compared with controls. Following a period of 5 days after hemodilution, we noted a 13% reduction in red cell mass (p = 0.046), and 10% reduction in total blood volume (p = 0.02), albeit with no changes in the plasma volume.We conclude that direct measurement of blood volumes is useful for proper management of these patients, and provides results that are considerably different from those obtained by empirical estimations.


1956 ◽  
Vol 185 (3) ◽  
pp. 441-445 ◽  
Author(s):  
Kee-Chang Huang ◽  
James H. Bondurant

A method for simultaneous estimation of plasma volume, red cell volume and thiocyanate space in unanesthetized rats utilizing a polyethylene catheter in the common carotid artery with T-1824, P32-tagged red cells, and NaSCN was perfected and determinations were performed on 77 male albino rats. Determinations of plasma volume using T-1824 or I131-serum albumin in the same animal gave essentially identical results. Total blood volume was calculated as the sum of P32-red cell volume and T-1824-plasma volume and was found to be 5.75 ml/100 gm body weight in normal rats and 5.61 ml/100 gm in splenectomized rats. There was a wide variation in the Fcell values of normal rats but little in splenectomized rats. This difference was highly significant and was attributed to the presence of the spleen. The average thiocyanate space was found to be 33.0 ml and 35.8 ml/100 gm in normal and splenectomized rats, respectively.


PLoS ONE ◽  
2020 ◽  
Vol 15 (9) ◽  
pp. e0234835
Author(s):  
Wei Xia ◽  
Zong-jian Huang ◽  
Zhao-liang Guo ◽  
Yi-wei Feng ◽  
Chao-yin Zhang ◽  
...  

1959 ◽  
Vol 197 (2) ◽  
pp. 499-501 ◽  
Author(s):  
Richard L. Farrand ◽  
Steven M. Horvath

The rectal temperature of dogs was reduced to 27°C and stabilized at this level for a period of at least 3 hours. The heart rate, blood pressure, respiration rate, blood volumes, extracellular volume (thiocyanate space), and total body water (antipyrine space) were recorded during the reduction in temperature and the period of stable body temperature. No change was observed in the mean arterial pressure during any period of hypothermia; the heart rate decreased exponentially during the reduction in body temperature but remained constant during the stable period. Blood volume increased during the initial stages of hypothermia (33°C to 36°C) and remained at this level. Hematocrit and erythrocyte volume followed the same pattern as total blood volume, with no alteration in the plasma volume. There were no shifts in the extracellular or intracellular volumes at any time during the hypothermic state.


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