Normal blood volumes in the horse

1964 ◽  
Vol 207 (1) ◽  
pp. 223-227 ◽  
Author(s):  
N. A. Marcilese ◽  
R. M. Valsecchi ◽  
H. D. Figueiras ◽  
H. R. Camberos ◽  
J. E. Varela
Keyword(s):  
Body Weight ◽  
Blood Volume ◽  
Plasma Volume ◽  
Red Cell ◽  
Total Blood Volume ◽  
Total Blood ◽  
Mean Values ◽  
The Mean ◽  
Race Horses ◽  
Blood Volumes

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 and plasma volume in adult males

1962 ◽  
Vol 17 (2) ◽  
pp. 195-198 ◽  
Author(s):  
Marvin J. Yiengst ◽  
Nathan W. Shock
Keyword(s):  
Plasma Volume ◽  
Age Groups ◽  
Dilution Method ◽  
Total Blood Volume ◽  
Adult Males ◽  
Age Changes ◽  
Total Blood ◽  
Mean Values ◽  
The Mean ◽  
Blood Volumes

Total blood volumes were estimated in 94 normal ambulatory males, aged 19–95 years, by the T-1824 dye dilution method. There were no significant age changes when results were expressed in terms of either body weight or surface area. The mean values for individual age groups between 40'49 and 80'95 years varied between 46.7 ± 1.5 and 51.5 ± 1.5 ml/kg body wt. for plasma volume and between 75.1 ± 2.0 and 82.3 ± 2.0 ml/kg body wt. for total blood volume. Submitted on October 16, 1961

Circulating blood volumes in pulmonary hypertension associated with erythrocytosis – the effects of therapeutic hemodilution

2003 ◽  
Vol 13 (6) ◽  
pp. 544-550 ◽  
Author(s):  
Rilvani C. Gonçalves ◽  
Carlos Alberto Buschpigell ◽  
Antonio Augusto Lopes
Keyword(s):  
Pulmonary Hypertension ◽  
Blood Volume ◽  
Plasma Volume ◽  
Cell Mass ◽  
Red Cell ◽  
Total Blood Volume ◽  
Eisenmenger Syndrome ◽  
Total Blood ◽  
Red Cell Mass ◽  
Blood Volumes

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.

Cell volume, plasma volume, total blood volume and Fcells factor in the rhesus monkey

1958 ◽  
Vol 196 (1) ◽  
pp. 184-187 ◽  
Author(s):  
Magnus I. Gregersen ◽  
H. Sear ◽  
R. A. Rawson ◽  
Shu Chien ◽  
G. L. Saiger
Keyword(s):  
Rhesus Monkey ◽  
Cell Volume ◽  
Blood Volume ◽  
Plasma Volume ◽  
Total Blood Volume ◽  
Total Blood ◽  
Mean Values ◽  
Cell Percentage ◽  
Simultaneous Measurements ◽  
The Mean

Forty-two simultaneous measurements of plasma and cell volume with T-1824 and P32 were made on 18 normal monkeys ranging in weight from 3.4 to 7.1 kg. Nine determinations were made on two animals at varying intervals during a 16-month period. The mean values and standard deviations were as follows: cell volume 17.7 (S.D., 1.66) ml/kg; plasma volume, 36.4 (S.D., 3.98) ml/kg; blood volume, 54.0 (S.D., 4.72) ml/kg; Fcells factor, 0.83, (S.D., 0.046); venous cell percentage (hematocrit value x.96), 39.6; plasma protein (refractometer) 7.26 gm %. Variations among animals in plasma and blood volume, expressed in milliliters per kilogram were significantly greater than those observed in the same animal during the 16-month period.

scholarly journals Blood volume in monoclonal gammopathy

Blood ◽  
1977 ◽  
Vol 49 (2) ◽  
pp. 301-307 ◽  
Author(s):  
R Alexanian
Keyword(s):  
Cell Volume ◽  
Blood Volume ◽  
Plasma Volume ◽  
Monoclonal Gammopathy ◽  
Red Cell ◽  
Total Blood Volume ◽  
Elevated Plasma ◽  
Total Blood ◽  
Red Cell Volume ◽  
The Relationship

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.

Simultaneous Estimation of Plasma Volume, Red Cell Volume and Thiocyanate Space in Unanesthetized Normal and Splenectomized Rats

1956 ◽  
Vol 185 (3) ◽  
pp. 441-445 ◽  
Author(s):  
Kee-Chang Huang ◽  
James H. Bondurant
Keyword(s):  
Body Weight ◽  
Cell Volume ◽  
Plasma Volume ◽  
Albino Rats ◽  
Simultaneous Estimation ◽  
Red Cell ◽  
Total Blood Volume ◽  
Total Blood ◽  
Red Cell Volume ◽  
The Common

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.

STUDIES ON THE BLOOD VOLUME FOLLOWING HYPOPHYSECTOMY IN MAN

1963 ◽  
Vol 42 (4) ◽  
pp. 552-563 ◽  
Author(s):  
Thomas Falkheden ◽  
Björn Sjögren ◽  
Håkan Westling
Keyword(s):  
Body Weight ◽  
Replacement Therapy ◽  
Cell Volume ◽  
Blood Volume ◽  
Mammary Carcinoma ◽  
Red Cell ◽  
Total Blood Volume ◽  
Total Blood ◽  
Before And After ◽  
Total Haemoglobin

ABSTRACT Using 51Cr-labelled red cells, studies on the blood volume were performed before and after hypophysectomy in five patients (three cases of metastatic mammary carcinoma and two cases of acromegaly). In addition, studies were performed only after hypophysectomy in nine patients (two cases of metastatic mammary carcinoma and seven diabetic subjects). All patients were on replacement therapy with cortisone (17,21-dihydroxy-pregn-4-ene-3,11,20-trione) postoperatively, and several cases also received thyroid and sex hormones. Hypophysectomy was followed by a decrease in the red cell volume, the calculated total blood volume, and the total amount of haemoglobin in the patients studied before and after operation. The differences in calculated total blood volume and the total amount of haemoglobin between all hypophysectomized patients and a series of control subjects were analyzed on the basis of body weight. The total blood volume and total haemoglobin were significantly reduced in the hypophysectomized group.

Plasma volume, cell volume, total blood volume and Fcells factor in the normal and splenectomized Sherman rat

1958 ◽  
Vol 196 (1) ◽  
pp. 188-192 ◽  
Author(s):  
Louise Wang
Keyword(s):  
Body Weight ◽  
Cell Volume ◽  
Blood Volume ◽  
Plasma Volume ◽  
Simultaneous Measurement ◽  
Total Blood Volume ◽  
Total Blood ◽  
Unanesthetized Animals ◽  
Cell Volumes ◽  
Volume Cell

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.

Simultaneous determination of blood volume with Cr51 and T-1824 during hypothermia and rewarming

1959 ◽  
Vol 196 (4) ◽  
pp. 703-705 ◽  
Author(s):  
E. J. Fedor ◽  
B. Fisher
Keyword(s):  
Cell Volume ◽  
Simultaneous Determination ◽  
Blood Volume ◽  
Plasma Volume ◽  
Red Cell ◽  
Total Blood Volume ◽  
Total Blood ◽  
Red Cell Volume ◽  
Usual Feature

Dogs lightly anesthetized with ether, maintained between 23–24°C for 2 hours and rewarmed, were subjected to simultaneous determinations of red cell volume (Cr51) and plasma volume (T-1824). Red cell volume values were unchanged during the course of the experiment. Plasma volumes were significantly decreased during hypothermia and were transiently elevated during rewarming. Twenty-four hours after rewarming, total blood volume and plasma volume values were not significantly different from control values. It would seem that circulatory failure (‘rewarming shock’) is not a usual feature of rewarming following hypothermia of 2 hours duration.

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
Keyword(s):  
Body Weight ◽  
Blood Volume ◽  
Plasma Volume ◽  
Sperm Whale ◽  
Total Body Weight ◽  
Total Blood Volume ◽  
Total Plasma ◽  
Sperm Whales ◽  
Total Blood ◽  
Total Body

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.

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