A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
(0-9)
Radioactive abscess scan
Radioactive iodine screening test - thyroid
Radioactive iodine uptake
Radiograph - dental
Radiography
Radionuclide - gallbladder
Radionuclide cisternogram
Radionuclide cystogram
Radionuclide renal perfusion scan
Radionuclide ventriculography (RNV)
RAIU
Random blood sugar
Random plasma renin
Rapid eye movement studies
Rapid plasma reagin
Rapid strep test
RAST test
RAUI
RBC (or erythrocyte) cholinesterase
RBC - urine
RBC count
RBC G6PD test
RBC indices
RBC nuclear scan
Rectal biopsy
Rectal culture
Red blood cell casts
Red blood cell count
Red blood cells in urine
Red cell mass measurement
Refraction test
Removal of adrenal glands
Renal angiogram
Renal arteriography
Renal biopsy
Renal perfusion scintigraphy
Renal perfusion scintiscan
Renal replacement therapy
Renal scan
Renal tubular epithelial casts
Renal venogram
Renin
Renogram
Repeat quantitative beta HCG
Resin T3 uptake
Respiratory inductance plethysmography
Respiratory syncytial virus antibodies
Reticulocyte count
Retinal photography
Retinol test
Retrograde cystography
Retrograde ureteral brush biopsy cytology
RF
Rh typing
Rheumatoid factor
Right heart catheterization
Right heart ventriculography
Rotavirus antigen test
Routine eye examination
Routine sputum culture
Routine urine test
RPR
RSV antibody test
RSV serology
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