S.C. Code Ann. § 56-5-2950
(a) A person who drives a motor vehicle in this State is considered to have given consent to chemical tests of his breath, blood, or urine for the purpose of determining the presence of alcohol or drugs or the combination of alcohol and drugs if arrested for an offense arising out of acts alleged to have been committed while the person was driving a motor vehicle while under the influence of alcohol, drugs, or a combination of alcohol and drugs. A breath test must be administered at the direction of a law enforcement officer who has arrested a person for driving a motor vehicle in this State while under the influence of alcohol, drugs, or a combination of alcohol and drugs. At the direction of the arresting officer, the person first must be offered a breath test to determine the person's alcohol concentration. If the person is physically unable to provide an acceptable breath sample because he has an injured mouth, is unconscious or dead, or for any other reason considered acceptable by the licensed medical personnel, the arresting officer may request a blood sample to be taken. If the officer has reasonable grounds to believe that the person is under the influence of drugs other than alcohol, the officer may order that a urine sample be taken for testing. If the alcohol concentration is eight one-hundredths of one percent or above, the officer may not require additional tests of the person as provided in this chapter. The breath test must be administered by a person trained and certified by the Department of Public Safety, pursuant to SLED policies. The arresting officer may administer the tests if the person's conduct during the twenty-minute pre-test waiting period is videotaped pursuant to Section 56-5-2953(A)(2)(d). Before the breath test is administered, an eight one- hundredths of one percent simulator test must be performed and the result must reflect a reading between 0.076 percent and 0.084 percent. Blood and urine samples must be obtained by physicians licensed by the State Board of Medical Examiners, registered nurses licensed by the State Board of Nursing, and other medical personnel trained to obtain the samples in a licensed medical facility. Blood and urine samples must be obtained and handled in accordance with procedures approved by SLED.
(5) if he does not request an administrative hearing or if his suspension is upheld at the administrative hearing, he must enroll in an Alcohol and Drug Safety Action Program.
A hospital, physician, qualified technician, chemist, or registered nurse who obtains the samples or conducts the test or participates in the process of obtaining the samples or conducting the test in accordance with this section is not subject to a cause of action for assault, battery, or another cause alleging that the drawing of blood or taking samples at the request of the arrested person or a law enforcement officer was wrongful. This release from liability does not reduce the standard of medical care required of the person obtaining the samples or conducting the test. This qualified release also applies to the employer of the person who conducts the test or obtains the samples.
The person tested or giving samples for testing may have a qualified person of his own choosing conduct additional tests at his expense and must be notified in writing of that right. A person's request or failure to request additional blood or urine tests is not admissible against the person in the criminal trial. The failure or inability of the person tested to obtain additional tests does not preclude the admission of evidence relating to the tests or samples obtained at the direction of the law enforcement officer.
The arresting officer must provide affirmative assistance to the person to contact a qualified person to conduct and obtain additional tests. Affirmative assistance, at a minimum, includes providing transportation for the person to the nearest medical facility which provides blood tests to determine a person's alcohol concentration. If the medical facility obtains the blood sample but refuses or fails to test the blood sample to determine the person's alcohol concentration, SLED must test the blood sample and provide the result to the person and to the arresting officer. Failure to provide affirmative assistance upon request to obtain additional tests bars the admissibility of the breath test result in any judicial or administrative proceeding.
SLED must administer the provisions of this subsection and must make regulations necessary to carry out its provisions. The costs of the tests administered at the direction of the law enforcement officer must be paid from the general fund of the State.
A qualified person who obtains samples or administers the tests or assists in obtaining samples or the administration of tests at the direction of a law enforcement officer is released from civil and criminal liability unless the obtaining of samples or tests is performed in a negligent, reckless, or fraudulent manner. No person may be required by the arresting officer, or by another law enforcement officer, to obtain or take any sample of blood or urine.
No tests may be administered or samples obtained unless the person has been informed in writing that:
(b) In the criminal prosecution for a violation of Section 56-5-2930, 56-5-2933, or 56-5-2945 relating to driving a vehicle under the influence of alcohol, drugs, or a combination of alcohol and drugs, the alcohol concentration at the time of the test, as shown by chemical analysis of the person's breath or other body fluids, gives rise to the following:
(4) If the alcohol concentration was at that time eight one-hundredths of one percent or more and the original testing of the person's breath or collection of other bodily fluids was performed within two hours of the time of arrest, the person has violated Section 56-5-2933.
The provisions of this section must not be construed as limiting the introduction of any other evidence bearing upon the question of whether or not the person was under the influence of alcohol, drugs, or a combination of them.